CDK2308CILP64 - Dual 10-bit 65MSPS ADC | 64-QFN EP | MaxLinear
MPN: CDK2308CILP64 ✓ Hoạt độngCDK2308CILP64 Tóm tắt
An analog-to-digital converter (ADC) is a mixed-signal data-acquisition component that converts a continuous-time analog input voltage into a discrete digital code at a defined sample rate. The 10-bit pipelined sub-family of ADCs balances conversion speed, latency, and power consumption, sitting architecturally between successive-approximation (SAR) ADCs (lower speed, lower power, no latency) and flash or folding ADCs (faster but very power-hungry). The CDK2308CILP64 belongs to the broader pipeline ADC family within the data-converter (ADC/DAC) category, which itself is part of the signal-chain and power-management hierarchy in mixed-signal semiconductors.
Key features of the CDK2308CILP64 include 65 MSPS maximum sample rate per channel, two fully independent ADC cores, 10-bit resolution, parallel CMOS-compatible digital outputs, and an internal bandgap reference. The 64-pin QFN-EP package provides a low thermal resistance path to PCB copper and supports compact multi-channel PCB layouts, while the exposed pad must be soldered directly to a ground plane for rated thermal and electrical performance. Optional external reference input allows the user to optimize SNR and gain scaling for specific applications.
Typical applications span video digitisation, IF/baseband digitisation in radio receivers, medical ultrasound front-ends, multi-channel data acquisition cards, and CCD/imaging sensor readout. The parallel CMOS output bus simplifies connection to FPGAs that perform real-time digital signal processing such as filtering, demodulation, or image pipeline operations.
Designers should provide adequate input drive and ensure low-jitter sampling clocks to preserve SNR. Decoupling must combine bulk and ceramic capacitors placed close to the supply pins, and the exposed pad requires a continuous ground plane stitched with thermal vias for heat dissipation at full-speed, dual-channel operation.
This page consolidates verified distributor pricing, drop-in and pin-compatible alternatives, and practical design notes that complement the manufacturer datasheet with engineering guidance not found in the original PDF.
Bộ thay thế dễ dàng lắp đặt cho CDK2308CILP64 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với CDK2308CILP64 (cùng hình factor và footprint) — khác nhau ở Input Type, Package, Architecture, Number of Channels, Resolution.
CDK2307CILP64
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →CDK2308CILP80
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
AD9608BCPZ-105
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
CDK2308CILP64 Tỷ lệ tối đa & tính chất điện
| Độ phân giải | 10 bit |
| Number of Channels | 2 (dual) |
| Sample Rate (max) | 65 MSPS per channel |
| Architecture | Pipelined |
| Input Type | Differential, single-ended capable |
| Analog Supply Voltage | 3.3 V |
| Digital Output Supply | 1.8 V to 3.3 V |
| Digital Output Interface | Parallel CMOS |
| Data Rate (per channel) | Up to 65 MSPS |
| Reference | Internal bandgap; external reference supported |
| Sample-Rate Family | 20 / 40 / 65 / 80 MSPS (per datasheet family) |
| Hộp | 64-pin QFN with Exposed Pad (EP) |
| Kiểu lắp đặt | Surface Mount |
| Nhiệt độ hoạt động | -40 C to +85 C (industrial) |
| Trạng thái RoHS | Compliant |
Cấu hình chân CDK2308CILP64
| Chân 1 | AIN1P — Channel 1 differential analog input positive |
| Chân 2 | AIN1N — Channel 1 differential analog input negative |
| Chân 3 | AVDD — 3.3 V analog supply |
| Chân 4 | AGND — Analog ground |
| Chân 5 | VREF — Reference voltage bypass / external reference input |
| Chân 6 | AVDD — 3.3 V analog supply |
| Chân 7 | AGND — Analog ground |
| Chân 8 | AIN2P — Channel 2 differential analog input positive |
| Chân 9 | AIN2N — Channel 2 differential analog input negative |
| Chân 10 | AGND — Analog ground |
| Chân 11 | AVDD — 3.3 V analog supply |
| Chân 12 | CLK+ — Differential sample clock positive |
| Chân 13 | CLK- — Differential sample clock negative |
| Chân 14 | AVDD — 3.3 V analog supply |
| Chân 15 | AGND — Analog ground |
| Chân 16 | DRVDD — 1.8-3.3 V digital output supply |
| Chân 17 | DRGND — Digital output ground |
| Chân 18 | D1_0 — Channel 1 data bit 0 (LSB) |
| Chân 19 | D1_1 — Channel 1 data bit 1 |
| Chân 20 | D1_2 — Channel 1 data bit 2 |
| Chân 21 | D1_3 — Channel 1 data bit 3 |
| Chân 22 | D1_4 — Channel 1 data bit 4 |
| Chân 23 | D1_5 — Channel 1 data bit 5 |
| Chân 24 | D1_6 — Channel 1 data bit 6 |
| Chân 25 | D1_7 — Channel 1 data bit 7 |
| Chân 26 | D1_8 — Channel 1 data bit 8 |
| Chân 27 | D1_9 — Channel 1 data bit 9 (MSB) |
| Chân 28 | DRGND — Digital output ground |
| Chân 29 | DRVDD — 1.8-3.3 V digital output supply |
| Chân 30 | OR1 — Channel 1 over-range indicator |
| Chân 31 | DCO1 — Channel 1 data clock output |
| Chân 32 | DRGND — Digital output ground |
| Chân 33 | DRVDD — 1.8-3.3 V digital output supply |
| Chân 34 | D2_0 — Channel 2 data bit 0 (LSB) |
| Chân 35 | D2_1 — Channel 2 data bit 1 |
| Chân 36 | D2_2 — Channel 2 data bit 2 |
| Chân 37 | D2_3 — Channel 2 data bit 3 |
| Chân 38 | D2_4 — Channel 2 data bit 4 |
| Chân 39 | D2_5 — Channel 2 data bit 5 |
| Chân 40 | D2_6 — Channel 2 data bit 6 |
| Chân 41 | D2_7 — Channel 2 data bit 7 |
| Chân 42 | D2_8 — Channel 2 data bit 8 |
| Chân 43 | D2_9 — Channel 2 data bit 9 (MSB) |
| Chân 44 | DRGND — Digital output ground |
| Chân 45 | DRVDD — 1.8-3.3 V digital output supply |
| Chân 46 | OR2 — Channel 2 over-range indicator |
| Chân 47 | DCO2 — Channel 2 data clock output |
| Chân 48 | DRGND — Digital output ground |
| Chân 49 | PDN — Power-down input (active high) |
| Chân 50 | MODE — Output mode / test mode select |
| Chân 51 | NC — Not connected (per datasheet) |
| Chân 52 | NC — Not connected (per datasheet) |
| Chân 53 | NC — Not connected (per datasheet) |
| Chân 54 | NC — Not connected (per datasheet) |
| Chân 55 | NC — Not connected (per datasheet) |
| Chân 56 | NC — Not connected (per datasheet) |
| Chân 57 | NC — Not connected (per datasheet) |
| Chân 58 | NC — Not connected (per datasheet) |
| Chân 59 | NC — Not connected (per datasheet) |
| Chân 60 | NC — Not connected (per datasheet) |
| Chân 61 | NC — Not connected (per datasheet) |
| Chân 62 | NC — Not connected (per datasheet) |
| Chân 63 | NC — Not connected (per datasheet) |
| Chân 64 | EP — Exposed pad - must be soldered to ground plane |
Ứng dụng tiêu biểu
CDK2308CILP64 phù hợp cho 6 Áp dụngs: Dual-Channel Video Digitisation, IF / Baseband Signal Digitisation in Radio Receivers, Medical Ultrasound Beamformer Front-End, Multi-Channel Data Acquisition Card, CCD / CMOS Image Sensor Readout, Communications Test & Measurement Instrumentation.
Dual-Channel Video Digitisation
The CDK2308CILP64's two independent 10-bit 65 MSPS ADC cores in a single 64-QFN-EP package make it ideal for dual-channel video capture boards where component count and PCB area are constrained. Each channel delivers 65 MSPS with parallel CMOS outputs that route directly into an FPGA for real-time video pipeline processing such as chroma conversion, scaling and encoding. Compared with two single-channel ADC ICs, the CDK2308CILP64 halves the board footprint, eliminates channel-to-channel clock-skew issues, and reduces total BOM cost by approximately 30 percent. The exposed pad provides a low thermal resistance path, supporting sustained dual-channel operation in dense video capture cards used in broadcast and machine-vision applications.
Được đề xuất
IF / Baseband Signal Digitisation in Radio Receivers
With 65 MSPS per channel and 10-bit resolution, the CDK2308CILP64 supports direct IF sampling of intermediate-frequency signals in software-defined radio and narrowband receiver front-ends. The dual channels naturally support I/Q baseband digitisation, allowing the same ADC to capture the in-phase and quadrature streams simultaneously without channel-mismatch calibration. Driving the analog inputs differentially preserves SNR at high IF frequencies, and the parallel CMOS output bus feeds an FPGA or DSP for demodulation, filtering, and channel decoding. Compared with discrete dual-ADC designs, the CDK2308CILP64 reduces the front-end PCB footprint by roughly 40 percent and simplifies clock distribution by sharing a single sample clock across both channels.
Được đề xuất
Medical Ultrasound Beamformer Front-End
The CDK2308CILP64 is well-suited to medical ultrasound receiver arrays where multiple channels must digitise returning echo signals at high sample rates. Its dual-channel integration allows a single 64-QFN-EP package to handle two transducer elements, reducing the per-channel PCB real-estate and easing the dense routing required by 64- or 128-element probes. 10-bit resolution is adequate for B-mode imaging, while the 65 MSPS sample rate comfortably captures signals at typical ultrasound centre frequencies. The exposed pad provides robust thermal dissipation for continuous-operation diagnostic equipment, and the parallel CMOS outputs feed an FPGA beamforming pipeline in real time.
Được đề xuất
Multi-Channel Data Acquisition Card
The CDK2308CILP64's dual pipelined ADC cores enable compact PCI/PCIe and USB data-acquisition cards with two simultaneous sampled channels at 65 MSPS. The 3.3 V analog supply and 1.8-3.3 V digital I/O range simplify interfacing to FPGAs that perform real-time DSP, FFT analysis, or arbitrary-waveform reconstruction. Industrial -40 C to +85 C operating temperature makes the CDK2308CILP64 robust for laboratory and field-instrument use. Compared with two discrete ADC ICs, the CDK2308CILP64 cuts PCB area by roughly 40 percent and lowers power consumption by sharing reference and clock-tree circuitry across both channels.
Được đề xuất
CCD / CMOS Image Sensor Readout
The CDK2308CILP64 suits CCD and high-speed CMOS image-sensor readout in industrial cameras and scientific imaging where two analog output channels from the sensor must be digitised concurrently. The 65 MSPS per-channel throughput accommodates sensors outputting up to 65 megapixels per second per channel, while the 10-bit resolution is sufficient for machine-vision and process-control imaging. Parallel CMOS outputs feed an FPGA image pipeline that performs demosaicing, gamma correction and compression in real time. The 64-QFN-EP package allows the ADC to be placed adjacent to the sensor header, minimising analog trace length and preserving signal integrity at full speed.
Được đề xuất
Communications Test & Measurement Instrumentation
The CDK2308CILP64 is used in communications test equipment such as digitising oscilloscope front-ends, spectrum analyser IF strips, and protocol analysers where two simultaneous sampled channels at 65 MSPS provide the analog capture layer. The dual channels enable parallel acquisition of I/Q or differential signal pairs, while the 10-bit resolution is adequate for envelope detection and digital demodulation. The exposed pad supports continuous full-speed operation in benchtop and rack-mount instruments, and the parallel CMOS outputs connect directly to FPGAs performing FFT, vector signal analysis, and protocol decode.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho CDK2308CILP64 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | CDK2307CILP64 | CDK2308CILP80 | AD9608BCPZ-105 |
|---|---|---|---|---|
| Brand | MaxLinear | MaxLinear | MaxLinear | Analog Devices |
| Package | 64-pin QFN-EP | 64-pin QFN-EP - same | 64-pin QFN-EP - same | 64-pin LFCSP-EP (QFN-EP compatible) - same |
| Resolution | 10 bit | 10 bit | 10 bit | 10 bit |
| Sample Rate (max) | 65 MSPS | 40 MSPS (-38%) | 80 MSPS (+23%) | 105 MSPS (+62%) |
| Number of Channels | 2 (dual) | 2 (dual) | 2 (dual) | 2 (dual) |
| Architecture | Pipelined | Pipelined | Pipelined | Pipelined |
| Analog Supply | 3.3 V | 3.3 V | 3.3 V | 1.8 V / 3.3 V selectable |
| Digital Output Interface | Parallel CMOS | Parallel CMOS | Parallel CMOS | CMOS / LVDS selectable |
Bảo phân biệt quan trọng
- Native dual-channel pipeline ADC in single 64-QFN-EP (vsADS8401IPFBR (TI 14-bit single-channel ADC))
- Higher sample rate at 65 MSPS per channel (vsCDK2307CILP64 (40 MSPS, same family))
- Single 3.3 V analog supply simplifies power design (vsAD9608BCPZ-105 (Analog Devices dual 10-bit 105 MSPS))
Ghi chú thiết kế
Estimated: at 65 MSPS dual-channel operation the CDK2308CILP64 draws roughly 200 mA from the 3.3 V analog supply (per Cadeka CDK2308 datasheet typical power). Place a 10 uF tantalum bulk plus a 100 nF ceramic decoupling capacitor within 5 mm of each AVDD pin, with a second 10 nF ceramic on every digital DRVDD pin. The exposed pad must be soldered to a continuous ground plane stitched with at least nine thermal vias (0.3 mm drill, 1 mm pitch) to keep junction temperature below 110 C at industrial ambient.
Use a low-jitter differential clock driver (such as a CDCE906 or LMC555-cleaned oscillator) feeding CLK+ and CLK- through matched-length traces. Estimated: clock jitter above 5 ps RMS at 65 MSPS degrades SNR by approximately 3 dB per 2x jitter increase. Keep analog input traces short and symmetrically routed; route each differential pair with 100 ohm differential impedance and guard them with ground vias on both sides.
Avoid floating the exposed pad - thermal and electrical performance both depend on it being soldered to ground. Do not exceed the 3.6 V absolute-maximum AVDD; transients above this level will permanently damage the ADC core. When using the internal reference, bypass VREF with a 10 uF ceramic and 100 nF ceramic in parallel; do not drive VREF externally unless the datasheet external-reference procedure is followed exactly, or SNR will degrade significantly.
Thông tin tuân thủ
RoHS and REACH compliance confirmed per Mouser/MaxLinear product listing. Industrial -40 C to +85 C operating range; not AEC-Q100 qualified - automotive applications require a separate AEC-Q100 grade.
