Analog Devices LTC6957IDD-1#PBF, Fanout Buffer (Distribution), 300 MHz max, LVPECL output, 1:2 ratio, 3.15V-3.45V supply, -40°C to 85°C, 12-WFDFN Exposed Pad, Tube
| Parameter | Value |
|---|---|
| Type | Fanout Buffer (Distribution) |
| Mounting | Surface Mount |
| Supply voltage | 3.15V ~ 3.45V |
| Frequency - max | 300 MHz |
| Operating temperature | -40°C ~ 85°C |
| Input | CML, CMOS, LVDS, LVPECL |
| Output | LVPECL |
| Package | Tube |
| Case | 12-WFDFN Exposed Pad |
| Number of circuits | 1 |
| Ratio - Input:Output | 1:2 |
| Differential - Input:Output | Yes/Yes |
The LTC6957IDD-1#PBF is a 1:2 fanout buffer from Analog Devices, accepting CML, CMOS, LVDS, or LVPECL inputs and delivering LVPECL outputs at up to 300 MHz. Supply voltage is tight at 3.15V to 3.45V, so the 3.3V rail must be clean and within ±4.5% — a standard 3.3V ±5% supply is marginal without post-regulation.
Supplied in Tube (the #PBF suffix denotes lead-free, ROHS3-compliant finish). For reel quantities, order the LTC6957IDD-1#TRPBF variant.
It accepts CML, CMOS, LVDS, or LVPECL inputs — covering the common differential and single-ended clock standards used in high-speed digital systems.
No — the -1 outputs LVPECL, while the -2 outputs LVDS. They are not pin-compatible replacements; the output logic family must match the downstream receiver.