CPC5604A Clare, CPC5604A Datasheet - Page 18

• 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
18
Figure 3 Caller ID Protocol
This CID signal is then processed by the host and, after
processing, the host will deactivate the CID signal. At
this point the host can answer the call if desired by
asserting the OH pin on the LiteLink
note that when the LiteLink
matically disconnects the snoop path from both the RX
and Ring outputs. Signals appearing on the telephone
line are now coupled through the optical isolation barri-
er in the LiteLink
snoop path.
CID gain from Tip and Ring to Rx+ and Rx- is deter-
mined by:
Where f = CID signal frequency
For example, with RRXF = 75KW, RSNOOP = 1.4MW,
CS = 220pF, and f = 600Hz calculated GAIN = 0.707 or
a loss of -3dB at Rx+ and Rx-. This implies that the
snoop frequency response is 600Hz. Gain is expressed
in decibels by:
GAIN =
RING
CID
1ST RING
2 s
(R
500ms
SNOOP
TM
10 R
and not via the capacitors in the
CALLER ID MESSAGE
)
2
+
3 s
RXF
(2πf C
TM
1
goes off-hook, it auto-
S
475ms
)
TM
2
. It’s important to
2ND RING
2 s
www.clare.com
SINE WAVE
The LiteLink
characteristics including the CTR-21 standard. The pins
that control the VI characteristics and current limiting are
designated ZDC and DCS. Meeting DC requirements
are achieved by selecting the appropriate resistors R
(R16) and R
also be switched in and out with the CPC5601device or
optocouplers which enables international compliance
under software control. Suggested resistor values for
various countries are listed in table 1. The VI profile on
Tip and Ring is described by the following equation:
V
Example: I
1.69MW, R
DC characteristics
LINE
= V
BRIDGE
LINE
ZDC
TM
DCS
+
= 20mA, V
= 8W, V
is designed to meet various country DC
(R20) respectively. Resistor values can
R
DCS
(R
+12MΩ
DCS
LINE
)
BRIDGE
= 6.0V.
= 1.2V, R
0.5V+ (I
LINE
DCS
- 8mA)R
=
ZDC
ZDC
XXX