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Temperature stability down to 20ppb Single 5V oven & oscillator supply Standard European IEC CO-08 pin-out Custom options available
Standard Models
The table shows the most common models. In most cases selecting one of these models will ensure the best combination of price / performance and availability. Freq 5.0MHz 5.0MHz 10.0MHz 10.0MHz 13.0MHz 13.0MHz Specification HCD351/DPFL HCD351/ERFL HCD351/DPFL HCD351/ERFL HCD351/DPFL HCD351/ERFL Ageing per day ±1x.
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5V OCXO HCMOS Output
Specifications
HCD351
Parameters
Frequency range: 5.0 ~ 20.0MHz Ageing per day (at despatch): < ±1x10-9 < ±5x10-10 < ±2x10-10 Frequency stability: < ±5x10-8 per year -9 < ±1x10 per 10% change in VDD Short term stability: < ±1x10-11 over 1 sec Product
HCD351
Option Codes
˿ ˿ ˿ ˿ P R S A C F D E F
36.10 (max)
27.20 (max)
19.40 (max) 0.50 0.80Ø 17.80 25.40 5.00 15.00
Temperature stability:
< < ±1x10-8 < ±5x10-9
±2x10-8
3 8.90 2 8.90 1 BOTTOM VIEW
4
PIN 1 2 3 4
CONNECTION Freq adjustment Ref voltage out Supply RF output Ground & case
Operating temperature range: 0 to +50°C -10 to +60°C -20 to +70°C Storage temperature range: -40 to +90°C Output waveform: HCMOS / TTL compatible Frequency adjustment: ±5x10-7 (typ) over +0.5 to +4.
HCD351 Datasheet