CDCE913PWR - Programmable 1-PLL VCXO Clock Synthesizer | TI
MPN: CDCE913PWR ✓ AktifCDCE913PWR Ringkasan
A clock synthesizer is an electronic circuit that generates multiple output clock frequencies from a single reference input, using phase-locked loops (PLLs) and dividers. It is a key component in timing and synchronization systems, enabling precise clock generation for microprocessors, FPGAs, and communication interfaces. Clock synthesizers are part of the broader clock and timing IC family, which includes clock generators, jitter cleaners, and buffers.
Key features of the CDCE913PWR include a programmable 1-PLL architecture, three LVCMOS outputs, and support for spread-spectrum clocking to reduce electromagnetic interference (EMI). The device can be programmed in-system via an I2C interface, allowing dynamic frequency changes without external components. It also offers low jitter performance, making it suitable for high-speed digital systems.
The CDCE913PWR uses a modular PLL-based architecture, which provides flexibility in generating various output frequencies from a single reference. The integrated VCXO allows fine frequency tuning, and the device supports both 2.5-V and 3.3-V LVCMOS output levels. The 14-pin TSSOP package is compact and suitable for space-constrained applications.
Typical applications include set-top boxes, digital TVs, printers, and networking equipment, where multiple clock frequencies are required for different subsystems. The device's programmability and low EMI make it ideal for consumer electronics and industrial control systems.
When designing with the CDCE913PWR, ensure proper decoupling of the power supply pins and use a clean reference clock to achieve optimal jitter performance. The I2C interface allows easy configuration, but careful attention to register settings is required to avoid unintended frequency outputs.
Pilihan pengganti yang segera untuk CDCE913PWR — sama paket, pin-pin kompatibel. Bahagian paket yang berbeza memerlukan kerja ulang PCB diasingkan.
Varietas dalam siri ini
Model serupa yang kompatibel dengan pengganti yang segera CDCE913PWR (sama faktor bentuk dan kaki) — berbeza dalam Number of Outputs, Package, RoHS Status.
CDCE913PW
✅ Masuk Drop-In📋 Alternatif rujukan (tidak dalam katalog)
CDCE913PWRG4
✅ Masuk Drop-In📋 Alternatif rujukan (tidak dalam katalog)
CDCE925PWR
⚡ Pekali yang sama📋 Alternatif rujukan (tidak dalam katalog)
CDCE906
⚡ Pekali yang sama📋 Alternatif rujukan (tidak dalam katalog)
CDCE913PWR Spesifikasi
| Output Frequency | Up to 230 MHz |
| Bilangan Output | 3 |
| PLL Count | 1 |
| Tegangan Pemberi Arus | 1.8 V, 2.5 V, 3.3 V |
| Output Logic | LVCMOS |
| Kemasan | 14-TSSOP (0.173", 4.40mm Width) |
| Jenis Pemasangan | Surface Mount |
| Spread Spectrum | Yes |
| Antaramuka | I2C |
| VCXO | Yes |
| Status RoHS | Compliant |
| REACH Status | Compliant |
| Status Lingkungan Hidup | Active |
Konfigurasi Pin CDCE913PWR
| Pin 1 | VDDOUT — Output supply voltage |
| Pin 2 | Y1 — Clock output 1 |
| Pin 3 | GND — Ground |
| Pin 4 | Y2 — Clock output 2 |
| Pin 5 | Y3 — Clock output 3 |
| Pin 6 | VCC — Core supply voltage |
| Pin 7 | SDA — I2C data line |
| Pin 8 | SCL — I2C clock line |
| Pin 9 | XIN — Crystal input |
| Pin 10 | XOUT — Crystal output |
| Pin 11 | GND — Ground |
| Pin 12 | VCXO_IN — VCXO control voltage input |
| Pin 13 | PD — Power down control |
| Pin 14 | VDDOUT — Output supply voltage |
Aplikasi Biasa
CDCE913PWR patut untuk 6 aplikasis: Set-Top Boxes, Digital TVs, Printers, Networking Equipment, Industrial Control Systems, Consumer Electronics.
Set-Top Boxes
The CDCE913PWR generates multiple clock frequencies for audio/video processing, network interfaces, and system control in set-top boxes. Its programmable PLL allows dynamic frequency changes via I2C, enabling support for various video standards. The spread-spectrum clocking reduces EMI, which is critical for consumer electronics compliance. With three LVCMOS outputs, it can drive the main SoC, memory, and peripheral clocks from a single reference crystal, simplifying the clock tree and reducing BOM cost.
Disebarkan
Digital TVs
In digital TVs, the CDCE913PWR provides clean, low-jitter clocks for video processors, HDMI interfaces, and audio codecs. Its low jitter performance ensures stable pixel clocks for high-definition video, while the programmable outputs allow adaptation to different display resolutions. The spread-spectrum feature helps meet FCC EMI limits, and the small TSSOP package fits space-constrained TV main boards. The I2C interface enables dynamic reconfiguration for different input sources.
Disebarkan
Printers
The CDCE913PWR is used in printers to generate clocks for the print engine, motor control, and communication interfaces. Its programmable outputs allow precise timing for paper feed and print head operations. The spread-spectrum clocking reduces EMI, which is important for office equipment compliance. The device's low power consumption and small footprint make it ideal for compact printer designs. The I2C interface allows firmware to adjust clock frequencies for different print modes.
Disebarkan
Networking Equipment
In networking equipment, the CDCE913PWR provides clocks for Ethernet PHYs, switches, and processors. Its low jitter ensures reliable data transmission, and the programmable outputs can generate multiple line rates from a single reference. The spread-spectrum feature helps reduce EMI in dense PCB layouts. The device's I2C interface allows dynamic reconfiguration for different network standards, making it versatile for routers and switches.
Disebarkan
Industrial Control Systems
The CDCE913PWR is suitable for industrial control systems that require precise timing for sensors, actuators, and communication protocols. Its wide supply voltage range (1.8V to 3.3V) allows integration into various logic levels. The programmable PLL can generate different clock frequencies for different modules, and the spread-spectrum feature reduces EMI in noisy industrial environments. The device's robust design and active lifecycle make it a reliable choice for long-life industrial products.
Disebarkan
Consumer Electronics
The CDCE913PWR is used in various consumer electronics like gaming consoles, smart speakers, and home automation hubs. Its small size and low cost make it ideal for high-volume production. The programmable outputs allow a single device to serve multiple product variants, reducing inventory. The spread-spectrum clocking helps meet consumer EMI standards, and the I2C interface enables firmware updates to change clock configurations.
Disebarkan
Ringkasan Produk Disebarkan
Data referensi kejuruteraan untuk CDCE913PWR — perbandingan, panduan rancangan, dan maklumat kesediaan
Panduan Pilihan
Perbandingan dengan Gantian
| Parametr | Produk Ini | CDCE913PW | CDCE913PWRG4 | CDCE925PWR | CDCE906 |
|---|---|---|---|---|---|
| Package | 14-TSSOP | 14-TSSOP | 14-TSSOP | 14-TSSOP | 14-TSSOP |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Number of PLLs | 1 | 1 | 1 | 2 | 3 |
| Number of Outputs | 3 | 3 | 3 | 5 | 6 |
| Max Output Frequency | 230 MHz | 230 MHz | 230 MHz | 230 MHz | 230 MHz |
| Spread Spectrum | Yes | Yes | Yes | Yes | Yes |
| Interface | I2C | I2C | I2C | I2C | I2C |
| Supply Voltage | 1.8V, 2.5V, 3.3V | 1.8V, 2.5V, 3.3V | 1.8V, 2.5V, 3.3V | 1.8V, 2.5V, 3.3V | 1.8V, 2.5V, 3.3V |
Penyeberangsung Jelas
- Single PLL with three outputs (vsCDCE925PWR)
- Lower cost (vsCDCE925PWR)
- Pin-compatible with CDCE913PW (vsCDCE913PW)
Catatan Desain
Decouple the VCC and VDDOUT pins with 0.1uF ceramic capacitors placed as close to the pins as possible. Use a 10uF bulk capacitor on the main supply. The CDCE913PWR supports 1.8V, 2.5V, and 3.3V supplies, so ensure the VDDOUT voltage matches the logic levels of the receiving devices.
Keep the crystal input (XIN) and output (XOUT) traces short and shielded to avoid parasitic capacitance and noise. Place the crystal close to the IC and use a ground plane around it. For the I2C lines (SDA, SCL), add pull-up resistors (typically 2.2k to 4.7k) to the appropriate supply voltage.
Ensure the reference clock is clean and free of jitter to achieve optimal output jitter performance. Avoid programming the PLL to frequencies outside the specified range. When using spread-spectrum, verify that the modulation depth does not exceed system requirements, as it can affect timing margins.
Maklumat Kesediaan
RoHS and REACH compliant per distributor data. Not AEC-Q100 qualified.
