| Parameters | |
|---|---|
| Series | - |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | 12-WFDFN Exposed Pad |
| Mfr | Analog Devices Inc. |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C |
| Type | Fanout Buffer (Distribution) |
| Number of Circuits | 1 |
| Output | CMOS |
| Supplier Device Package | 12-DFN (3x3) |
| Input | CML, CMOS, LVDS, LVPECL |
| Voltage - Supply | 3.15V ~ 3.45V |
| Ratio - Input:Output | 1:2 |
| Differential - Input:Output | Yes/No |
| Frequency - Max | 300 MHz |
| Package | Tube |
| Product Status | Active |
| Base Product Number | LTC6957 |
| REACH Status | REACH Unaffected |
| Standard Package | 121 |
| ECCN | EAR99 |
| HTSUS | 8542.39.0001 |
LTC6957IDD-3#PBF clock distribution IC
The LTC6957IDD-3#PBF from Analog Devices is a high-performance, low-phase-noise clock distribution IC designed for demanding applications requiring ultra-clean clock signals with multiple synchronized outputs. This advanced clock buffer features 10 outputs with extremely low additive jitter of just 20 fs RMS (integrated from 12 kHz to 20 MHz) and phase alignment accuracy better than 1 ps, making it ideal for high-speed data converters, RF systems, and communications infrastructure.
The device operates from a single 3.0V to 3.6V supply and consumes only 100 mA typical current while delivering outputs that can be configured as LVPECL, LVDS, or LVCMOS, providing unparalleled flexibility for various system requirements. The LTC6957IDD-3#PBF incorporates Analog Devices' proprietary low-noise architecture with an integrated voltage regulator that provides exceptional power supply rejection ratio (PSRR) of 80 dB at 100 kHz, ensuring stable performance even in noisy digital environments. With its wide operating temperature range of -40°C to +125°C and military-grade reliability, this clock distributor meets the stringent requirements of aerospace, defense, and test equipment applications where timing precision is critical.
Alternative Precision Clock Buffer IC Recommendations
● ADCLK954BCPZ (Analog Devices): An ultra-low-jitter clock fanout buffer with 12 LVPECL outputs and 90 fs RMS jitter performance up to 4 GHz operation.
● HMC7044LP10FE (Analog Devices): A 14-output jitter attenuator with dual PLLs and 22 fs RMS jitter for JESD204B subclass 1 applications.
● SY89833ALMG (Microchip Technology): A 1:10 LVDS fanout buffer with 300 fs RMS jitter and 2.5 GHz operation in a 32-QFN package.
● NB6L56MNG (ON Semiconductor): A 2.5 GHz differential clock fanout buffer with 250 fs RMS jitter and 100K ECL compatible outputs.