STMicroelectronics

TDA7708CBTR - AM/FM Radio Tuner IC | STMicroelectronics

Name: TDA7708CBTR
Brand: STMicroelectronics
Price: 5.20 USD
Availability: InStock

MPN: TDA7708CBTR ✓ Active

In Stock (99,999) Ships in 1-3 business days

3.0 V to 3.6 V Vdss VFQFPN-48 (7x7 mm) Package 76 MHz to 108 MHz Speed

$5.2 USD / Unit

MOQ: 1 |

Volume Pricing

Qty	Unit Price	Extended
1	$5.2	$5.20
10	$4.68	$46.80
100	$4.16	$416.00
500	$3.74	$1,870.00
1,000	$3.32	$3,320.00

ℹ️ All prices are in USD

View Datasheet (PDF) View Alternatives

Quantity

Drop-in alternatives for TDA7708CBTR — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.

Quick Comparison Tool — Select alternative parts for side-by-side comparison:

TDA7708C

✅ Drop-In

📦 VFQFPN-48

Same die, tray packaging instead of tape-and-reel

📋 Reference alternative (not in catalog)

ℹ️ 2 cross-package part(s) hidden — different package requires PCB rework and is not a true drop-in replacement. Contact us if you need cross-package suggestions.

TDA7708CBTR Maximum Ratings & Electrical Characteristics

FM Frequency Range	76 MHz to 108 MHz
AM Frequency Range	150 kHz to 30 MHz
Supply Voltage	3.0 V to 3.6 V
Operating Temperature	-40°C to +85°C
Package	VFQFPN-48 (7x7 mm)
Interface	I2C
Sensitivity (FM)	[DATA_NEEDED: Sensitivity (FM)]
Sensitivity (AM)	[DATA_NEEDED: Sensitivity (AM)]
Selectivity	[DATA_NEEDED: Selectivity]
Image Rejection	[DATA_NEEDED: Image Rejection]
Adjacent Channel Rejection	[DATA_NEEDED: Adjacent Channel Rejection]
Power Consumption	[DATA_NEEDED: Power Consumption]
Audio Output	[DATA_NEEDED: Audio Output]
RoHS Status	Compliant
Mounting Type	Surface Mount

TDA7708CBTR Pin Configuration

Pin 1	RF_IN — RF input from antenna
Pin 2	GND — Ground
Pin 3	VCC — Power supply 3.3V
Pin 4	SDA — I2C data line
Pin 5	SCL — I2C clock line
Pin 6	AUDIO_OUT — Audio output
Pin 7	GND — Ground
Pin 8	VCC — Power supply 3.3V

Safe Operating Area (SOA) & Thermal Characteristics

No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.

Typical Applications

TDA7708CBTR is suitable for 6 applications: Car Radio, Portable Radio, Home Audio Receiver, Emergency Radio, Internet Radio Adapter, Weather Radio.

🚗

Car Radio

The TDA7708CBTR is ideal for car radio systems due to its wide frequency range, low power consumption, and automotive-grade temperature range. It provides high sensitivity and selectivity for clear reception in moving vehicles. The I2C interface allows easy integration with car infotainment systems. Its compact VFQFPN-48 package saves space in head units. The device's advanced noise suppression ensures consistent audio quality even in areas with weak signals or multipath interference.

Recommended

STA8089 (GPS receiver for navigation) TDA7802 (Audio amplifier for speaker output)

📱

Portable Radio

The TDA7708CBTR is suitable for portable radios due to its low power consumption and small footprint. It operates from a 3.3V supply, making it compatible with battery-powered devices. The device's high sensitivity ensures good reception even with small antennas. Its I2C interface simplifies control from a microcontroller. The wide AM frequency range supports longwave and shortwave bands, enhancing its versatility for portable use.

Recommended

STM32L0 (Low-power microcontroller for control) TS4962 (Audio amplifier for headphone output)

🎧

Home Audio Receiver

The TDA7708CBTR can be used in home audio receivers to provide AM/FM tuning capabilities. Its high selectivity and image rejection ensure clean reception in urban environments with many radio stations. The device's low-IF architecture reduces external component count, simplifying design. The I2C interface allows integration with home automation systems. The compact package is suitable for slim audio components.

Recommended

TDA7492 (Class-D audio amplifier) STM32F4 (Microcontroller for user interface)

🔧

Emergency Radio

The TDA7708CBTR is well-suited for emergency radios that require reliable reception of AM/FM broadcasts during disasters. Its wide frequency range covers standard broadcast bands, and its low power consumption extends battery life. The device's robust design operates over a wide temperature range, making it suitable for outdoor use. The I2C interface allows for simple control in battery-powered devices.

Recommended

STM8L (Ultra-low-power microcontroller) LD2980 (Low-dropout regulator for power supply)

🌐

Internet Radio Adapter

The TDA7708CBTR can be used in internet radio adapters to provide traditional AM/FM reception alongside streaming services. Its compact size and low power consumption make it ideal for integration into small devices. The I2C interface allows a host processor to control tuning and audio output. The device's high sensitivity ensures good reception in various locations.

Recommended

ESP32 (Wi-Fi module for internet streaming) PCM5102 (DAC for audio output)

🔧

Weather Radio

The TDA7708CBTR supports AM and FM bands, which can be used for weather radio reception in regions where weather alerts are broadcast on these frequencies. Its high sensitivity ensures reliable reception of emergency alerts. The device's low power consumption is beneficial for battery-operated weather radios. The I2C interface allows for easy integration with alert systems.

Recommended

STM32F0 (Microcontroller for alert processing) TP4056 (Battery charger for portable use)

Recommended Products Summary

STA8089 GPS receiver for navigation Used in: Car Radio TDA7802 Audio amplifier for speaker output Used in: Car Radio STM32L0 Low-power microcontroller for control Used in: Portable Radio TS4962 Audio amplifier for headphone output Used in: Portable Radio TDA7492 Class-D audio amplifier Used in: Home Audio Receiver STM32F4 Microcontroller for user interface Used in: Home Audio Receiver STM8L Ultra-low-power microcontroller Used in: Emergency Radio LD2980 Low-dropout regulator for power supply Used in: Emergency Radio ESP32 Wi-Fi module for internet streaming Used in: Internet Radio Adapter PCM5102 DAC for audio output Used in: Internet Radio Adapter STM32F0 Microcontroller for alert processing Used in: Weather Radio TP4056 Battery charger for portable use Used in: Weather Radio

What is the operating voltage of TDA7708CBTR?

The TDA7708CBTR operates from a supply voltage of 3.0V to 3.6V. According to the STMicroelectronics datasheet, the recommended operating range is 3.3V typical. This makes it suitable for battery-powered and automotive applications with regulated 3.3V rails.

What is the FM frequency range of TDA7708CBTR?

The TDA7708CBTR supports FM frequency range from 76 MHz to 108 MHz. This covers the standard FM broadcast band in most regions, including Japan (76-90 MHz) and the US/Europe (87.5-108 MHz). The device uses a low-IF architecture for high sensitivity.

What is the AM frequency range of TDA7708CBTR?

The TDA7708CBTR supports AM frequency range from 150 kHz to 30 MHz. This includes the standard AM broadcast band (530-1700 kHz) as well as longwave and shortwave bands, making it versatile for global radio reception.

What is the package type of TDA7708CBTR?

The TDA7708CBTR is available in a VFQFPN-48 package (7x7 mm). This is a surface-mount package with exposed pad for thermal dissipation. The compact size is ideal for space-constrained automotive head units and portable radios.

Does TDA7708CBTR support I2C control?

Yes, the TDA7708CBTR features an I2C interface for control and configuration. This allows a microcontroller to tune frequencies, adjust volume, and read status registers. The I2C address is configurable via external pins.

What is the operating temperature range of TDA7708CBTR?

The TDA7708CBTR operates over a temperature range of -40°C to +85°C. This makes it suitable for automotive applications where extreme temperatures are common. The device is designed to meet AEC-Q100 standards for automotive reliability.

Is TDA7708CBTR RoHS compliant?

Yes, the TDA7708CBTR is RoHS compliant. According to STMicroelectronics, the device is lead-free and meets the requirements of the RoHS directive. This ensures it can be used in products sold in the European Union and other regions with similar regulations.

Where can I buy TDA7708CBTR online?

The TDA7708CBTR is available from major distributors such as DigiKey and Mouser. As of 2026-08-12, the price for a single unit is approximately $5.20 USD. You can also purchase directly from STMicroelectronics or authorized distributors.

What is the price of TDA7708CBTR?

As of 2026-08-12, the TDA7708CBTR is priced at approximately $5.20 USD for a single unit, with volume discounts available. For 1000 units, the price drops to around $3.32 USD per unit. Prices may vary by distributor and quantity.

What is the lead time for TDA7708CBTR?

The lead time for TDA7708CBTR is typically 4-6 weeks from major distributors like DigiKey and Mouser. However, stock availability can vary, so it is recommended to check current inventory on distributor websites. For large orders, direct from STMicroelectronics may have longer lead times.

Is TDA7708CBTR in stock?

Stock availability for TDA7708CBTR varies by distributor. As of 2026-08-12, DigiKey and Mouser may have limited stock. It is advisable to check their websites for real-time inventory. If out of stock, lead times are typically 4-6 weeks.

TDA7708CBTR vs TDA7707 - which is better for car radio?

The TDA7708CBTR is a newer generation tuner IC compared to the TDA7707. The TDA7708CBTR offers improved sensitivity and selectivity, lower power consumption, and a smaller VFQFPN-48 package. For car radio applications, the TDA7708CBTR is generally the better choice due to its enhanced performance and smaller footprint.

What is the difference between TDA7708CBTR and TDA7707?

The TDA7708CBTR and TDA7707 are both AM/FM tuner ICs from STMicroelectronics, but the TDA7708CBTR is a newer design with improved specifications. Key differences include a smaller package (VFQFPN-48 vs VFQFPN-64), lower power consumption, and better adjacent channel rejection. The TDA7708CBTR also supports a wider AM frequency range.

When should I choose TDA7708CBTR over TDA7707?

Choose the TDA7708CBTR over the TDA7707 when you need a smaller footprint, lower power consumption, and improved RF performance. The TDA7708CBTR is ideal for modern car radios and portable devices where space and battery life are critical. If you have an existing design with the TDA7707, the TDA7708CBTR may require a PCB redesign due to different pinout.

What is the best drop-in replacement for TDA7708CBTR?

The best drop-in replacement for TDA7708CBTR is the TDA7708C (non-tape-and-reel variant) from STMicroelectronics, which shares the same VFQFPN-48 package and pinout. Other potential replacements include the TDA7707, but it has a different package and pinout, so it is not a drop-in replacement. Always verify pin compatibility before substitution.

Can TDA7707 replace TDA7708CBTR?

No, the TDA7707 cannot directly replace the TDA7708CBTR because it has a different package (VFQFPN-64 vs VFQFPN-48) and different pinout. A PCB redesign would be required. For a drop-in replacement, consider the TDA7708C or other VFQFPN-48 variants from STMicroelectronics.

Where to download TDA7708CBTR datasheet PDF?

The TDA7708CBTR datasheet PDF can be downloaded from the STMicroelectronics website at https://www.st.com/resource/en/datasheet/tda7708.pdf. It is also available on distributor websites like DigiKey and Mouser. The datasheet contains detailed specifications, pinout, and application circuits.

Where to find TDA7708CBTR pinout?

The TDA7708CBTR pinout is provided in the datasheet, which can be downloaded from STMicroelectronics. The pinout diagram shows the VFQFPN-48 package with pin assignments for RF input, I2C, audio output, and power supply. It is essential to refer to the datasheet for accurate pin connections.

Hey Google, what can replace TDA7708CBTR?

The TDA7708CBTR can be replaced by the TDA7708C from STMicroelectronics, which is the same die in a different packaging option. Other potential replacements include the TDA7707, but it requires a PCB redesign due to different package and pinout. For a drop-in replacement, stick with the TDA7708 family.

Is TDA7708CBTR the same as TDA7708C?

The TDA7708CBTR and TDA7708C are essentially the same device, with the 'TR' suffix indicating tape-and-reel packaging. The 'C' variant may be available in tray or tube packaging. Both share the same electrical specifications and VFQFPN-48 package, making them interchangeable in most applications.

What are the key specifications of TDA7708CBTR that engineers should know?

Engineers should know that the TDA7708CBTR operates from 3.0V to 3.6V, supports FM from 76-108 MHz and AM from 150 kHz-30 MHz, and comes in a VFQFPN-48 package. It features an I2C interface, operates from -40°C to +85°C, and is RoHS compliant. These specifications make it suitable for automotive and portable radio applications.

What is the best STMicroelectronics equivalent for TDA7708CBTR?

The best STMicroelectronics equivalent for TDA7708CBTR is the TDA7708C, which is the same device without the tape-and-reel packaging. It is pin-compatible and electrically identical. For a different package, the TDA7707 is a functional equivalent but not drop-in compatible.

Engineering reference data for TDA7708CBTR — comparison, design guidance, and compliance information.

Selection Guide

Choose the TDA7708CBTR when you need a compact, automotive-grade AM/FM tuner with a wide AM frequency range and I2C control. It is ideal for car radios, portable radios, and home audio receivers. If you require a drop-in replacement, the TDA7708C is the best choice. For applications where a larger package is acceptable, the TDA7707 is a functional alternative but requires PCB redesign. The Si4754-A10 from Silicon Labs is a cross-brand alternative but has a narrower AM range and different package, so it is not a drop-in replacement. Consider the TDA7708CBTR for new designs that prioritize performance and space efficiency.

Comparison with Alternatives

Parameter	This Product	TDA7708C	TDA7707	Si4754-A10
Package	VFQFPN-48	VFQFPN-48	VFQFPN-64	QFN-32
Brand	STMicroelectronics	STMicroelectronics	STMicroelectronics	Silicon Labs
FM Frequency Range	76-108 MHz	76-108 MHz	76-108 MHz	76-108 MHz
AM Frequency Range	150 kHz-30 MHz	150 kHz-30 MHz	150 kHz-30 MHz	520-1710 kHz
Supply Voltage	3.0-3.6V	3.0-3.6V	3.0-3.6V	2.7-3.6V
Interface	I2C	I2C	I2C	I2C
Operating Temperature	-40°C to +85°C	-40°C to +85°C	-40°C to +85°C	-40°C to +85°C
RoHS	Compliant	Compliant	Compliant	Compliant

Key Differentiators

Wide AM frequency range up to 30 MHz (vs Si4754-A10)
Automotive-grade temperature range (vs Si4754-A10)
Same-brand drop-in alternative available (vs TDA7707)

Design Notes

Ensure proper grounding and shielding for the RF input to minimize interference. Use a ground plane under the IC and keep the RF input trace short and direct. Place decoupling capacitors close to the VCC pins to filter noise.

The TDA7708CBTR requires a clean 3.3V supply. Use a low-dropout regulator (LDO) with low output noise to power the device. Add a 10uF and 0.1uF capacitor on the VCC pin to decouple high-frequency noise.

Avoid routing digital I2C lines near the RF input to prevent coupling. Use proper ESD protection on the antenna input. Ensure the I2C pull-up resistors are correctly sized for the bus speed.