CD22101 Datasheet, PDF (11/13 Pages) Harris Corporation – CMOS 4 x 4 x 2 Crosspoint Switch with Control Memory

CD22101, CD22102
Test Circuits and Waveforms (Continued)
STROBE
50%
DATA
t_SU
t_H
50%
ADDRESS
OUTPUT OF SWITCH
ADDRESSED
IF SETUP AND HOLD TIMES PROVIDED ARE TOO SHORT,
AN UNADDRESSED SWITCH MAY BE TURNED ON OR OFF
SIMULTANEOUSLY WITH THE ADDRESSED SWITCH
DATA-IN
STROBE
Y2
t_HLH
1µs
50%
t_HHL
1µs
t_HLH
50%
1µs
SET ALL SWITCHES TO OFF INITIALLY APPLY VDD
TO ALL X INPUTS AND RETURN ALL Y OUTPUTS TO
VSS THROUGH 1kΩ. ADDRESS X1Y2 (ABCD) WITH f_IN = 10kHz
FIGURE 9. ADDRESS TO STROBE SETUP AND HOLD TIMES FIGURE 10. STROBE TO DATA-IN HOLD TIME t_H, FOR CD22101
CONTROLS
X (N)
1kΩ
SW
Y (N)
10kΩ
SW = ANY CROSSPOINT
5µs
V_DD
CONTROL
0
75mV
V_OS
0
FIGURE 11. TEST CIRCUIT AND WAVEFORMS FOR CROSSTALK (CONTROL INPUT TO SIGNAL OUTPUT)
ON
V_IS
SW
600Ω
600Ω
SW = ANY CROSSPOINT
600Ω
OFF
SW
V_OS
600Ω
-140
-120
-100
-80
-60
-40
-20
0
10²
V_DD = 5V
10V
15V
T_A = 25^oC
R_S = 600Ω
R_L = 600Ω
V_IS = 1V_RMS
10³
10⁴
10⁵
10⁶
10⁷
INPUT SIGNAL FREQUENCY (Hz)
FIGURE 12. TEST CIRCUIT AND TYPICAL CROSSTALK AS A FUNCTION OF FREQUENCY BETWEEN SWITCH CIRCUITS IN THE
SAME PACKAGE
4-203