840001I-25
840001I-25 is LVCMOS/LVTTL Clock Generator manufactured by Renesas.
DESCRIPTION
The 840001I-25 is a General Purpose Clock Generator and a member of the family of high performance devices from IDT. The 840001I-25 can accept frequency from a 22.4MHz to 170MHz and generate a 22.4MHz to 170MHz output. The 840001I-25 has excellent phase jitter performance, from 637k Hz
- 10MHz integration range. The 840001I-25 is packaged in a small 8-pin TSSOP, making it ideal for use in systems with limited board space.
FEATURES
- One LVCMOS/LVTTL output, 15Ω output impedence
- Output frequency range: 22.4MHz
- 170MHz
- VCO range: 560MHz to 680MHz
- RMS phase jitter @ 125MHz (637k Hz
- 10MHz): 0.36ps (typical)
- Full 3.3V or 2.5V operating supply
- -40°C to 85°C ambient operating temperature
- Available in lead-free (Ro HS 6) package
MONLY USED FREQUENCY TABLE
SEL2 0 0 0 0 1 1 1 1
SEL1 0 0 1 1 0 0 1 1
SEL0 0 1 0 1 0 1 0 1
Inputs M Divider
25 10 4 5 10 5 4 10
N Divider 25 25 25 25 10 5 4 25
REF_IN (MHz) 25 62.5
156.25 125 62.5 125
156.25 62.5
Output Frequency (MHz) Q 25 25 25 25
62.5 125 156.25 25 (default)
BLOCK DIAGRAM
REF_IN Pullup
Phase Detector
560-680MHz
÷4
÷5
÷10
÷25
M ÷4, ÷5, ÷10, ÷25
SEL_[0:2] Pullup
PIN...