CPC5604A Clare, CPC5604A Datasheet - Page 28

• Manufacturer Part Number: CPC5604A
• Description: IC DAA OPT SGL 56K PCMCIA 32-SOP
• Manufacturer: Clare
• Series: LITELINK®r

Specifications of CPC5604A

• Function: Data Access Arrangement (DAA)
• Number Of Circuits: 1
• Voltage - Supply: 4.75 V ~ 5.25 V
• Current - Supply: 15mA
• Power (watts): 1W
• Operating Temperature: -20°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 32-SOIC (7.5mm Width)
• Includes: Caller ID Signal Detector, Ring Detector
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (max): 5.25V
• Operating Temp Range: -20C to 85C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 32
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Interface: -
• Lead Free Status / Rohs Status: Compliant

CPC5604
Snoop Mode Common Mode Rejection Ratio (CMRR)
As a practical matter, CMRR is dependent on how well
the external snoop network CS and RSNOOP are
matched. It is recommended that capacitors CS (C6 or
C7) be ceramic NPO (COG) type for excellent tempera-
ture stability and have a tolerance of 5% or less.
Resistor tolerance for RSNOOP (R5 or R6) should also
be at least 5% or better.
Careful consideration should be taken related to PCB
layout of the snoop network. Traces should be as short
Figure 10A Snoop Mode Common Mode Rejection Ratio Setup
Figure 10B Common Mode Rejection
28
Audio Precision
System One
Analyzer
CMRR
(dBm)
-12.5
-22.5
-32.5
-42.5
-52.5
-17.5
-27.5
-37.5
-47.5
-57.5
-2.5
-7.5
AP1
-10
-15
-20
-25
-30
-35
-40
-45
-50
-55
-60
+0
-5
IN1
IN2
20
100K
50
www.clare.com
V
100
RX+
CID
RX
RX-
Frequency (Hz)
LITELINK
200
as possible and kept equidistant from one another.
Spacing of 0.1” should be maintained between traces
on the phone line side. If possible, traces should be
routed away from large 60Hz fields to prevent noise
inducement into the snoop circuit.
Figure 10A shows the test setup for CMRR through the
snoop signal path. For this test the LITELINK
hook and the frequency is swept from 20Hz to 4kHz.
Figure 10B is a graph of CMRR vs. frequency.
TM
DAA Circuit
500
TIP
RING
V
T/R
1K
matched
500uf
1%
600
2.16uf
2K
40mA Loop Current
Precision
Generator
500
500
Audio
0dbm
4K
10H
10H
48V
+
-
TM
is on-
XXX