CD22101 Datasheet, PDF (1/13 Pages) Harris Corporation – CMOS 4 x 4 x 2 Crosspoint Switch with Control Memory

Semiconductor
CD22101, CD22102
[ /Title
(CD22
101,
CD221
02)
/Sub-
ject
(CMO
S4x4
x2
Cross-
point
Switch
with
Con-
trol
Mem-
ory)
/
Author
()
/Key-
words
(Har-
ris
Semi-
con-
ductor,
Tele-
com,
SLICs,
SLACs
, Tele-
phone,
Tele-
phony,
WLL,
Wire-
less
February 1999
Features
CNalOl ^{CoRerEneCtOmrOaBalMSiAlMO:[e-mail]4Mo42mE-N77T47}
CMOS 4
Description
x
4
x 2 Crosspoint Switch
with Control Memory
• Low ON Resistance . . . . . . . . . . . . 75Ω (Typ) at V_DD = 12V
• “Built - In” Latched Inputs
• Large Analog Signal Capability . . . . . . . . . . . . . . . ±V_DD/2
• Switch Bandwidth . . . . . . . . . . . . . . . . . . . . . . . . . . 10MHz
• Matched Switch Characteristics
∆R_ON = 8Ω (Typ) at V_DD = 12V
• High Linearity - 0.25% Distortion (Typ) at f = 1kHz,
V_IN = 5V_P-P, V_DD - V_SS = 10V, and R_L = 1kΩ
• Standard CMOS Noise Immunity
Applications
• Telephone Systems
• PBX
• Studio Audio Switching
• Multisystem Bus Interconnect
Ordering Information
PART
NUMBER
CD22101E
TEMP.
RANGE (^oC)
PACKAGE
-40 to 85 24 Ld PDIP
PKG. NO.
E24.6
CD22101 and CD22102 crosspoint switches consist of
4 x 4 x 2 arrays of crosspoints (transmission gates) with a
4-line to 16-line decoder and 16 latch circuits. Any one of
the sixteen crosspoint pairs can be selected by applying
the appropriate four-line address, corresponding
crosspoints in each array are turned on and off
simultaneously. Any number of crosspoints can be turned
on simultaneously.
In the CD22101, the selected crosspoint pair can be
turned on or off by applying a logic ONE or ZERO,
respectively, to the data input, and applying a ONE to the
strobe input. When the device is “powered up”, the states
of the 16 switches are indeterminate. Therefore, all
switches must be turned off by putting the strobe high,
data-in low, and then addressing all switches in
succession.
The selected pair of crosspoints in the CD22102 is turned
on by applying a logic ONE to the K_A (set) input while a
logic ZERO is on the K_B input, and turned off by applying
a logic ONE to the K_B (reset) input while a logic ZERO is
on the K_A input. In this respect, the control latches of the
CD22102 are similar to SET/RESET flip-flops. They differ,
however, in that the simultaneous application of ONEs to
the K_A and K_B inputs turns off (resets) all crosspoints. All
crosspoints in both devices must be turned off as V_DD is
applied.
CD22101F
-55 to 125 24 Ld CERDIP F24.6
CD22102E
-40 to 85 24 Ld PDIP
E24.6
Pinouts
CD22101
(PDIP, SBDIP)
TOP VIEW
B1
C2
X2' 3
Y1' 4
Y2' 5
X4' 6
X3' 7
Y4' 8
Y3' 9
X1' 10
D 11
VSS 12
24 VDD
23 A
22 X2
21 Y1
20 Y2
19 X4
18 X3
17 Y4
16 Y3
15 X1
14 ^DATA
13 STROBE
CD22102
(PDIP)
TOP VIEW
B1
C2
X2' 3
Y1' 4
Y2' 5
X4' 6
X3' 7
Y4' 8
Y3' 9
X1' 10
D 11
VSS 12
24 VDD
23 A
22 X2
21 Y1
20 Y2
19 X4
18 X3
17 Y4
16 Y3
15 X1
14 K_A
13 K_B
Functional Diagram
CONTROL
16
DECODER
LATCH
16
16
IN (OUT)
4X4
SWITCH
OUT (IN)
4X4
SWITCH
OUT (IN)
IN (OUT)
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
Copyright © Harris Corporation 1999
4-193
File Number 2871.3