STCD1020_10 Datasheet, PDF (16/40 Pages) STMicroelectronics – Multichannel clock distribution circuit

DC and AC parameters
6
DC and AC parameters
STCD1020, STCD1030, STCD1040
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
V_CC
Vin
Vout
Master clock (eg. from VCTCXO)
Supply voltage
Input clock voltage level⁽²⁾
Output gain level⁽³⁾
I_Q Quiescent current⁽⁴⁾
I_ACT Active current⁽⁵⁾
Sine wave/square wave
10
1.65
0.75
C_L = 10 pF
–1.5
2 buffers version
3 buffers version
4 buffers version
1 channel enabled
2 channels enabled
3 channels enabled
I_SB Standby current
R_IN Input resistance
C_IN Input capacitance
t_r/f Rise/fall time⁽⁶⁾
BW Signal bandwidth⁽³⁾
V_ENH
V_ENL
Enable voltage high⁽⁷⁾
Enable voltage low⁽⁷⁾
4 channels enabled
All buffers disabled
At DC level
f = 26 MHz
Vin = 1 Vpp, C_L = 10 pF
Square wave input/output
Vin = 1 Vpp, –1 dB, C_L = 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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Doc ID 13823 Rev 6