ICS841N254I Datasheet, PDF (9/23 Pages) Integrated Device Technology – FEMTOCLOCK® NG Crystal-to-LVDS/HCSL Clock Synthesizer

ICS841N254I Data Sheet
Parameter Measurement Information
FEMTOCLOCK® NG CRYSTAL-TO-LVDS/HCSL CLOCK SYNTHESIZER
3.3V±5%
POWER SUPPLY
+ Float GND –
V_DD,
V_{DDOA, VDDA}
SCOPE
Qx
nQx
2.5V±5%
POWER SUPPLY
+ Float GND –
V_DD,
V_{DDOA, VDDA}
SCOPE
Qx
nQx
3.3V LVDS Output Load AC Test Circuit
3.3V±5%
3.3V±5%
V_DD,
V_{DDOB VDDA}
HCSL
IREF
GND
475Ω
33Ω
33Ω
50Ω
49.9Ω
50Ω
49.9Ω
0V
0V
3.3V HCSL Output Load AC Test Circuit
2.5V±5%
2.5V±5%
V_DD,
V_{DDOB VDDA}
HCSL
IREF
GND
475Ω
33Ω
33Ω
0V
0V
50Ω
49.9Ω
50Ω
49.9Ω
2.5V HCSL Output Load AC Test Circuit
ICS841N254AKI REVISION A APRIL 18, 2011
2.5V LVDS Output Load AC Test Circuit
3.3V±5%
3.3V±5%
V_DD,
V_DDOB
Qx
V_DDA
SCOPE
50Ω
HCSL
2pF
50Ω
IREF
nQx
GND
475Ω
2pF
0V
0V
This load condition is used for I_DD, tjit(Ø), tsk(b) and tsk(o)
measurements.
3.3V HCSL Output Load AC Test Circuit
2.5V±5%
2.5V±5%
V_DD,
V_DDOB
Qx
V_DDA
50Ω
HCSL
2pF
50Ω
IREF
nQx
GND
475Ω
SCOPE
2pF
0V
0V
This load condition is used for I_DD, tjit(Ø), tsk(b) and tsk(o)
measurements.
2.5V HCSL Output Load AC Test Circuit
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©2011 Integrated Device Technology, Inc.