STCD1020 Datasheet, PDF (15/40 Pages) STMicroelectronics – Multi-channel clock distribution circuit

STCD1020, STCD1030, STCD1040
5
DC and AC parameters
DC and AC parameters
This section summarizes the operating measurement conditions, and the DC and AC
characteristics of the device. The parameters in the DC and AC characteristics tables that
follow are derived from tests performed under the measurement conditions summarized in
Table 6. Designers should check that the operating conditions in their circuit match the
operating conditions when relying on the quoted parameters.
Table 6. Operating and AC measurement conditions (1.8 V supply)
Parameter
Condition
Unit
V_CC supply
Output clock voltage (CLK1…CLK4)
Device enable voltage (EN1…EN4)
Ambient operating temperature (T_A)
1.65 to 2.75
V
0 to V_CC
V
0 to V_CC
V
-40 to +85
°C
Table 7. DC and AC characteristics (1.8 V supply)
Symbol
Parameter
Condition⁽¹⁾
Min
f_MCLK Master clock (eg. from VCTCXO)
Sine wave/square wave
10
V_CC Supply voltage
1.65
Vin Input clock voltage level⁽²⁾
0.75
Vout Output gain level⁽³⁾
C_L = 10 pF
-1.5
2 buffers version
I_Q Quiescent current⁽⁴⁾
3 buffers version
4 buffers version
1 channel enabled
I_ACT Active current⁽⁵⁾
2 channels enabled
3 channels enabled
4 channels enabled
I_SB Standby current
R_IN Input resistance
C_IN Input capacitance
t_r/f Rise/fall time⁽⁶⁾
All buffers disabled
At DC level
f = 26 MHz
Vin = 1 Vpp, CL = 10 pF
Square wave input/output
BW Signal bandwidth⁽³⁾
V_ENH
V_ENL
Enable voltage high⁽⁷⁾
Enable voltage low⁽⁷⁾
Vin = 1 Vpp, –1 dB, CL = 10 pF
Sine wave input/output
EN1~EN4
1.2
EN1~EN4
Typ
26
1.8
1
-0.5
1.6
2.0
2.6
1.7
2.2
2.7
3.2
>100
3
2
52
Max Unit
52 MHz
2.75 V
Vpp
dB
2.6
3.3 mA
4
mA
1
μA
kΩ
4
pF
5
ns
MHz
V
0.6 V
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