Datasheet CPC5604ATR, CPC5604A Datasheet (CPCLA)

1

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CPC5604

ANDS-CPC5604-XXX

The CPC5604 is a single package optical Data Access
Arrangement (DAA) device in a low profile surface
mount PCMCIA compatible package. With a few exter­nal components, the CPC5604 provides a full featured
International 56K capable solution. This device is well
suited for all 56K modems, voice mail systems, fax
machines, computer telephony applications, remote
data access, medical, and security systems. For
International compliance, external passive component
values can be changed or, the CPC5604 can be used
in conjunction with the CPC5601 Programmable Driver
for a host programmable International DAA.

• 56K Modems/Fax including PCMCIA

• Computer Telephony

• Voice Mail Systems

• Security/alarm systems

• Utility Meters

• Vending machines

• Voice Over IP

• Network routers

• PBX systems

• Home Medical Devices

• Plant monitoring equipment

• PC Mother Boards

• Set Top Boxes (Cable TV Modems)

• UL1950/UL1459

• EN60950

• 56K Compatible

• Transformerless Optical Design

• Complete Ring Detector Circuit

• Caller ID Signal Detection

• Snoop Circuitry

• Integrated Hybrid

• Small 32-Pin Plastic Package

• PCMCIA Compatible

• PCB Space and Cost Savings

• compatible with all modem speeds including V.90

• FCC compliant

• Compatible with U.S. and International dial up

Phone lines

• CTR-21 Compliant

Applications

Features

Description

Approvals

Optical Data Access Arrangement I.C.

Ordering Information

Part # Description

CPC5604A Data Access Arrangement,

Tape and Reel

CPC5604ATR Data Access Arrangement,

Tape and Reel

Block Diagram

Transconductance

Stage

2-4 Wire Hybrid

AC/DC Termination

Hookswitch

Isolation Barrier

Vref

AGC

Vref

AGC

Snoop Amplifier

Receive
Isolation
Amplifier

Transmit
Isolation
Amplifier

TIP+

RING-

Transmit

Diff.

Amplifier

Receive

Diff.

Amplifier

CID/

RING

MUX

Tx+

Tx-

OH

RING

CID

Rx+

Rx-

Current Limit Control

AC Impedance Control

VI Slope Control

C

S

C

S

R

SNOOP

R

SNOOP

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2

CPC5604

XXX

Table of Contents

Table 1 - Performance Specifications ........................................................................................................................3

Table 1 - Performance Specifications (Continued) ....................................................................................................4

Table 2 - Package Pinout ..........................................................................................................................................5

Applications ................................................................................................................................................................6

North American Reference Design Schematic ....................................................................................................6

Table 3 - North American Reference Design Bill of Materials....................................................................................7

International Reference Design Schematic................................................................................................................8

Table 4 - International Reference Design Bill of Materials ........................................................................................9

CTR-21 Reference Design Schematic ....................................................................................................................10

Table 5 - Reference Design Schematic Bill of Materials ..........................................................................................11

CTR-21 with Exceptions Reference Design Schematic ..........................................................................................12

Table 6 - CTR-21 with Exceptions Reference Design Bill of Materials ..................................................................13

Introduction ..............................................................................................................................................................14

Ring Detection via Snoop Circuit........................................................................................................................14

Caller ID (CID) Detection via Snoop Circuit ......................................................................................................14

Hook Switch Control ..........................................................................................................................................14

Transmit Signal ..................................................................................................................................................14

Receive Signal Path ................................................................................................................................................15

Transmit Signal Path ................................................................................................................................................15

Ring Signal Detection ..............................................................................................................................................16

Figure 3 - Caller ID Protocol ....................................................................................................................................17

DC Charcteristics......................................................................................................................................................17

Figure 4 - Outlook DC Resistance Tip/Ring Setup ..................................................................................................18

On-Hook Resistance ................................................................................................................................................18

Current Limiting ........................................................................................................................................................18

CTR-21 Compliance ................................................................................................................................................18

AC Characteristics ....................................................................................................................................................18

Differential and Single Ended Mode ........................................................................................................................19

Receive and Transmit Frequency Response ..........................................................................................................19

Figure 4C - Transmit Frequency Response Setup ..................................................................................................20

Figure 4D - Transmit Frequency Response Tx±......................................................................................................20

Distortion ..................................................................................................................................................................21

Figure 5C - Transmit Distortion Text Tx± to Tip/Ring Setup ....................................................................................22

Figure 5D - Transmit Distortion on Tip/Ring ............................................................................................................22

Trans-Hybrid Loss ....................................................................................................................................................23

CPC5604

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3

XXX

Table of Contents (Continued)

Return Loss ..............................................................................................................................................................24

Snoop Mode Frequency Response..........................................................................................................................25

Snoop Mode Distortion ............................................................................................................................................26

Snoop Mode Common Mode Rejection Ratio (CMRR) ..........................................................................................27

Country Specific Component Values........................................................................................................................28

Interconnection to Rockwell 56K Chipset ................................................................................................................29

Interconnection to Lucent 56K Chipset ....................................................................................................................30

Mechanical Dimensions............................................................................................................................................31

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CPC5604

XXX

Electrical Characteristics

Absolute Maximum Ratings are stress ratings. Stresses
in excess of these ratings can cause permanent damage
to the device. Functional operation of the device at these
or any other conditions beyond those indicated in the
operational sections of this data sheet is not implied.
Exposure of the device to the absolute maximum ratings
for an extended period may degrade the device and effect
its reliability.

4

PARAMETER MIN TYP MAX UNIT CONDITION

DC Characteristics

Operating Voltage V

CC

4.75 5 5.25 V Modem Side

Operating Current I

CC

- - 15 mA Modem Side

Operating Voltage V

DD

3.5 - 5.25 V From Tip and Ring

Operating Current I

DD

- - 5 mA Drawn from Tip and Ring

On-Hook Characteristics

DC Resistance (metallic) 10 - - MΩ Tip to Ring, 100VDC Applied
DC Resistance (longitudinal) 10 - - MΩ 150VDC Applied from Tip and Ring

to Earth GND
Ring Signal Detection at 68 Hz* 5 - - V Ring Signal Applied to Tip and Ring
Ring Signal Detection at 15 Hz* 28 - - V Ring Signal Applied to Tip and Ring
Snoop Circuit Frequency Response* 600 - 4000 Hz 3dB Corner Frequency
Snoop Circuit CMRR - -40 - dB 120V

RMS

60Hz Common

Mode Signal on Tip/Ring

Ringer Equivalence - 0.1B - REN -

Longitudinal Balance 60 - - dB Per FCC Part 68.3

Off-Hook Characteristics

AC Impedance* - 600 - Ω Tip to Ring
Longitudinal Balance 40 - - dB Tip and Ring to Ground, per FCC part

68.3

Return Loss - 26 - dB Against 600Ω, 1800Hz

CPC5604

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XXX

3

Table 1 -Performance Specifications (continued)

PARAMETER MIN TYP MAX UNIT CONDITION

Transmit/Receive Characteristics

Frequency Response* 30 - 4000 Hz 3dB corner frequency
Trans-Hybrid Loss* - 30 - dB Against 600Ω resistive, 1800Hz
Transmit Insertion Loss* -1 0 1 dB ­Receive Insertion Loss* -1 0 1 dB ­Average In-band Noise - -100 - dB 4kHz Flat bandwidth
Harmonic Distortion - - -80 dB -3dBm, 600Hz, 2nd Harmonic
Transmit Level* - - 0 dBm Single Tone Sine Wave
Receive Level* - - 0 dBm Single Tone Sine Wave
Rx+/Rx- Output Drive Current - - 0.5 mA Sink and Source
Tx+/Tx- Input Impedance 60 90 120 kΩ -

Isolation Characteristics

Isolation Surge Voltage 1500 - - V

SURGE

Line Side to Modem Side

Surge Rise Time 2000 - - V/µs No Damage via T/R

Control Logic (OH, CID, RING)

Input Threshold Voltage 0.8 - 2.0 V
High Level Input Current - - -20 µA
Low Level Input Current -100 - - µA
Output High Voltage V

CC

-0.4 - - V 1MΩ to Ground
Output Low Voltage - - 0.4 V 1MΩ to VCC
Isolation Voltage — - 1500 V

RMS

Tip/Ring Current (continuous) 10 - 120 mA
Total Package Dissipation — - 1 W
Operational Temperature -20 - +85 °C
Storage Temperature -40 - +125 °C
Soldering Temperature

(10 seconds Max) — - +220 °C

Unless Otherwise Noted all Specifications @ 25oC.
* Refer to Typical Application Circuit.

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6

CPC5604

XXX

Pin # Name Function

1VCCHost power supply, +5 Volts +/-5%.

2 TXF1 TX isolation amplifier output.

3 TX - NEG differential transmit signal into DAA.

4 TX+ POS differential transmit signal into DAA.

5 TX TX differential amplifier input.

6 NC Not Connected.

7 GND Connect to host analog ground.

8 OH Driving this signal low asserts the off-hook condition.

9 RING Active low indicates an incoming half waved ring signal

pulsed High to Low at the ring frequency-typically 20Hz.

10 CID Driving this signal low places the Caller ID information

on the RX pins when the DAA is on hook (OH is
deasserted).

11 RX- NEG differential analog receive signal from the tele-

phone line and must be AC coupled with a 0.1 uF
capacitor.

12 RX+ POS differential analog receive signal from the tele-

phone line and must be AC coupled with a 0.1 uF
capacitor.

13 SNP+ One of two differential snoop inputs.

14 SNP- One of two differential snoop inputs.

15 RXF Receive photodiode amplifier output.

16 RX Receive photoamplifier summing junction.

17 V

DD

Power supply for line side portion of CPC5604.

18 RXS Receive photodiode servo input.

19 RPB Sets receive LED prebias current.

20 BR- Return to bridge rectifier negative output.

21 ZDC Sets electronic inductor DCR/Current Limit.

22 DCF DC Filter Point.

23 DCS VI slope control via external resistor.

24 REF 1.25V internal voltage reference.

25 GAT Depletion MOSFET gate control.

26 NTS Receive signal input path via Tip and Ring.

27 BR- Return to bridge rectifier negative output.

28 TXS Receive photodiode amplifier input.

29 ZNT Sets DAA impedance via external passive network.

30 ZTX Transmit Transconductance gain setting pin.

31 TXF2 Receive photodiode amplifier output.

32 BR- Return to bridge rectifier negative output.

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16

32

31
30
29
28
27
26
25
24
23
22
21
20
19
18
17

VCC

TXF1

TX-

TX+

TX

NC

GND

OH

RING

CID

RX-

RX+

SNP+

SNP-

RXF

RX

BR-

TXF2

ZTX
ZNT
TXS

BR­NTS
GAT
REF

DCS
DCF
ZDC

BR-

RPB
RXS
VDD

Table 2 -Package Pinout

CPC5604

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XXX

C6

220pF

2000V

8

9

10111213141516

VCC

TXF1

TX-

TX+TXNC

GNDOHRING

CID

RX-

RX+

SNP+

SNP-

RXF

RX

BR-

TXF2

ZTX

ZNT

TXS

BR-

NTS

GAT

REF

DCS

DCF

ZDC

BR-

RPB

RXS

VDD

U1

CPC5604

1234567

191817

232221

20

25

24

32313029282726

C7

220pF

2000V

R5

1.5M

R6

1.5M

C8

R10

10M

0.1uF

R11

10K

C10

0.001uF

500V

R20

1.6M

R14

R7

150K

C2

0.1uF

R2

200K

C3

0.1uF

Q1

MOSFET

CPC5602C

806K

TX-

TX+

OH

RING

CID

RX+

RX-

R3

150K

C4

0.1uF

R1

604K

G

2

3

D

S

R19

12M

0.250W

TIP

RING

D1

~

~

-

+

SP1

P3100SB

4

1

3

2

R15

100

R16

8.2

R13

806K

R17

300

ALL RESISTORS ARE .100W

UNLESS OTHERWISE NOTED

R4

1M

.063W

.063W

1

C5

0.1uF

C11

0.47uF

Tant

R18

604

C1

0.1uF

R12

402K

Drawn: Date:

Company:

Title:

Rev:

JC/MG

10/27/99

B

CP Clare Corp.

U.S. Reference Design

VCC

C24

0.01uF

R36

4.7Ω

Applications

North American Reference Design Schematic

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8

CPC5604

XXX

Table 3 - North American Reference Design Bill of Materials

QTY. Designation Description Manufacturer Package Type

1 U1 CPC5604A Clare 32 Lead SOIC

1 Q1 CPC5602C Clare SOT-223

1 R1 604k 1% Res. Meritek ‘0603

1 R18 604 ohm 1% Res. Meritek ‘0603

1 R2 200k 5% Res. Meritek ‘0603

1 R4 1M 5% Res Meritek 0603

2 R3, R7 150k 5% Res. Meritek ‘0603

2 R5, R6 1.5M 5% Res. Meritek ‘1206

1 R11 10 K 5% Res. Meritek ‘0603

1 R12 402k 1% Res. Meritek ‘0603

1 R15 100 ohm 5% Res. Meritek ‘0603

2 R13, R14 806K 1% Res. 0.063W Meritek ‘0603

1 R16 8.2 5% Res. 1/8W Meritek ‘0603

1 R17 300 ohm 5% Res. Meritek ‘0603

1 R10 10M 5% Res. Meritek ‘0603

1 R19 12M 5% Res. 0.25W Meritek ‘1206

1 R20 1.6M 5% Res. Meritek ‘0805

1 R36 4.7 ohm 5% Res 1/8W Meritek ‘0603

5 C1, C2, C3, C4, C5 0.1 uf 50V 10% X7R Tecate ‘0805

2 C6, C7 220 pf 2000V NPO 5% Tecate 1808

1 C8 0.1uf 50V 10% X7R Tecate ‘0805

1 C10 0.001uf 500V10% X7R Tecate 1206

1 C11 0.47uf 25V Tant 10% Panasonic SMD

1 C24 .010 uf 50V 10% X7R Tecate 0805

1 D1 Bridge Rectifier Shindengen N/A

1 SP1 Surge Protection Teccor D0-214AA

32 TOTAL

CPC5604

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XXX

International Reference Design Schematic

C6

220pF

2000V

8

9

10111213141516

VCC

TXF1

TX-

TX+TXNC

GNDOHRING

CID

RX-

RX+

SNP+

SNP-

RXF

RX

BR-

TXF2

ZTX

ZNT

TXS

BR-

NTS

GAT

REF

DCS

DCF

ZDC

BR-

RPB

RXS

VDD

U1

CPC5604

1234567

191817

232221

20

25

24

32313029282726

C7

220pF

2000V

R5

1.5M

R6

1.5M

C8

R10

10M

0.1uF

R11

10K

C10

0.001uF

500V

R20

1.6M

R14

R7

150K

C1

0.1uF

C2

0.1uF

R2

200K

C3

0.1uF

Q1

MOSFET

CPC5602C

806K

TX-

TX+

OH

RING

CID

RX+

RX-

R3

150K

C4

0.1uF

R1

604K

G

2

3

D

S

R19

12M

0.250W

TIP

RING

D1

~

~

-

+

SP1

P3100SB

4

1

3

2

OPTIONAL:

SOFTWARE PROGRAMMABLE

CIRCUIT

R15

100

R16

22.1

R12

402K

R13

806K

R17

300

8.2K

0.250W

0.47uF

300V

R24*

C14*

Z1*

Z2*

2

3

3

2

D2 *

2

3

16

15

14

12

11

10

9

13

R25

590

R28 Open

R30

C16 Open

R27

0 ohm

R29

R31

R32

R33

12.1

BIT1

BIT2

BIT3

BIT4

BIT5

BIT6

BR-

8

7

3

1

2

U4

DATA_IN

R23

470

R21*

R22*

0 Ohm

10K

CPC5601

B

A

ALL RESISTORS ARE .100W

UNLESS OTHERWISE NOTED

C17

N/C

6

R4

1M

.063W

.063W

1

/

8

W

R18

604

1

C5

0.1uF

C11

0.47uF

Tant

Drawn: Date:

Company:

Title:

Rev:

JC/MG

10/2799

B

CP Clare Corp.

International Reference Design

VCC

VCC

R34

0 ohm

Open

OPEN

Open

Open

Open

Open

C15 Open

R26 0 ohm

C24

0.01uF

* Required for external ring detect only.

R36

4.7Ω

www.clare.com

10

CPC5604

XXX

Table 4 - International Reference Design Bill of Materials

QTY. Designation Description Manufacturer Package Type

1 U1 CPC5604A Clare 32 Lead SOIC
1 U4 CPC5601D Clare SO16
1 Q1 CPC5602C Clare SOT-223
1 R1 604k 1% Res. Meritek ‘0603
1 R18 604 ohm 1% Res. Meritek ‘0603
1 R2 200k 5% Res. Meritek ‘0603
1 R4 1M 5% Res. Meritek 0603
2 R3, R7 150k 5% Res. Meritek ‘0603
2 R5, R6 1.5M 5% Res. Meritek ‘1206
2 R11, R21 10 K 5% Res. Meritek ‘0603
1 R12 402k 1% Res. Meritek ‘0603
1 R15 100 ohm 5% Res. Meritek ‘0603
2 R13, R14 806K 1% Res. 0.063W Meritek ‘0603
1 R16 22.1 1% Res. 1/8W Meritek ‘0603
1 R17 300 ohm 5% Res. Meritek ‘0603
1 R10 10M 5% Res. Meritek ‘0603
1 R19 12M 5% Res. 0.25W Meritek ‘1206
1 R20 1.6M 5% Res. Meritek ‘0805
1 R23 470 ohm 5% Res. Meritek ‘0603
1 R24 8.2k 5% Res. 0.25W Meritek ‘0603
5 R22, R29, R30, R31, R32 Open - ‘0603
1 R25 590 ohm 5% Res. Meritek ‘0603
1 R26 0 ohm Res. Meritek ‘0603
1 R27 0 ohm Res. Meritek ‘0603
1 R28 Open - ‘0603
1 R33 12.1 ohm 1% Res. Meritek ‘0603
1 R34 0 ohm 5% Res. Meritek ‘0603
1 R36 4.7 ohm 5% Res 1/8W Meritek ‘0603
5 C1, C2, C3, C4, C5 0.1 uf 50V 10% X7R Tecate ‘0805
2 C6, C7 220 pf 2000V NPO 5% Tecate 1808
1 C8 0.1uf 50V 10% X7R Tecate ‘0805
1 C10 0.001uf 500V10% X7R Tecate 1206
1 C11 0.47uf 25V Tant 10% Panasonic SMD
1 C14 .47uf 300V Tecate 1812
1 C15 Open - ‘0805
1 C16 0.0047uf 50V 10% X7R Tecate ‘0805
1 C17 Open for future use - ‘0805
1 C24 0.01uf 50V 10% X7R Tecate 0805
1 SP1 Surge Protection Teccor D0-214AA
2 Z1, Z2 Zener 20V Rohm SOT-23
1 D1 Bridge Rectifier Shindengen N/A
1 D2 Diode BAS16 Rohm SOT-23
53 TOTAL

CPC5604

www.clare.com

11

XXX

CTR-21 Reference Design Schematic

C6

220pF

2000V

8

9

10111213141516

VCC

TXF1

TX-

TX+TXNC

GNDOHRING

CID

RX-

RX+

SNP+

SNP-

RXF

RX

BR-

TXF2

ZTX

ZNT

TXS

BR-

NTS

GAT

REF

DCS

DCF

ZDC

BR-

RPB

RXS

VDD

U1

CPC5604

1234567

191817

232221

20

25

24

32313029282726

C7

220pF

2000V

R5

1.5M

R6

1.5M

C8

R10

10M

0.1uF

R11

10K

C10

0.001uF

500V

R20

1.6M

R14

R7

150K

C2

0.1uF

R2

200K

C3

0.1uF

Q1

MOSFET

CPC5602C

806K

TX-

TX+

OH

RING

CID

RX+

RX-

R3

150K

C4

0.1uF

R1

604K

G

2

3

D

S

R19

12M

0.250W

TIP

RING

D1

~

~

-

+

SP1

P3100SB

4

1

3

2

R15

100

R16

22.1

R13

806K

R17

300

ALL RESISTORS ARE .100W

UNLESS OTHERWISE NOTED

R4

1M

.063W

.063W

1

C5

0.1uF

C11

0.47uF

Tant

R18

604

C1

0.1uF

1

2

3

6

5

4

CTRL

R12

402K

U2

Drawn: Date:

Company:

Title:

Rev:

JC/MG

10/27/99

B

CP Clare Corp.

CTR21 Reference Design

VCC

R21

12.1

C24

0.01uF

R36

4.7Ω

C25

www.clare.com

12

CPC5604

XXX

Table 5 - CTR-21 Reference Design Bill of Materials

QTY. Designation Description Manufacturer Package Type

1 U1 CPC5604A Clare 32 Lead SOIC
1 Q1 CPC5602C Clare SOT-223
1 R1 604k 1% Res. Meritek ‘0603
1 R4 1M 5% Res. Meritek 0603
1 R18 604 ohms 1% Res. Meritek ‘0603
1 R2 200k 5% Res. Meritek ‘0603
2 R3, R7 150k 5% Res. Meritek ‘0603
2 R5, R6 1.5M 5% Res. Meritek ‘1206
1 R11 10 K 5% Res. Meritek ‘0603
1 R12 402k 1% Res. Meritek ‘0603
1 R15 100 ohm 5% Res. Meritek ‘0603
2 R13, R14 806K 1% Res. 0.063W Meritek ‘0603
1 R16 22.1 5% Res. 1/8W Meritek ‘0603
1 R17 300 ohm 5% Res. Meritek ‘0603
1 R10 10M 5% Res. Meritek ‘0603
1 R19 12M 5% Res. .25W Meritek ‘1206
1 R20 1.6M 5% Res. Meritek ‘0805
1 R21 12.1 5% Res. 0.063W Meritek ‘0603
1 R36 4.7 ohm 5% Res 1/8 W Meritek ‘0603
5 C1, C2, C3, C4, C5 0.1 uf 50V 10% X7R Tecate ‘0805
2 C6, C7 220 pf 2000V NPO 5% Tecate 1808
1 C8 0.1uf 50V 10% X7R Tecate ‘0805
1 C10 0.001uf 500V10% X7R Tecate 1206
1 C11 0.47uf 25V Tant 10% Panasonic SMD
1 C24 0.01uf 50V 10% X7R Tecate ‘0805
1 D1 Bridge Rectifier Shindengen N/A
1 SP1 Surge Protection Teccor D0-214AA
1U2 4N35
34 TOTAL

CPC5604

www.clare.com

13

XXX

CTR-21 with Exceptions Reference Design Schematic

C6

220pF

2000V

8

9

10111213141516

VCC

TXF1

TX-

TX+TXNC

GNDOHRING

CID

RX-

RX+

SNP+

SNP-

RXF

RX

BR-

TXF2

ZTX

ZNT

TXS

BR-

NTS

GAT

REF

DCS

DCF

ZDC

BR-

RPB

RXS

VDD

U1

CPC5604

1234567

191817

232221

20

25

24

32313029282726

C7

220pF

2000V

R5

1.5M

R6

1.5M

C8

R10

10M

0.1uF

R11

10K

C10

0.001uF

500V

R20

1.6M

R14

R7

150K

C2

0.1uF

R2

200K

C3

0.1uF

Q1

MOSFET

CPC5602C

806K

TX-

TX+

OH

RING

CID

RX+

RX-

R3

150K

C4

0.1uF

R1

604K

G

2

3

D

S

R19

12M

0.250W

TIP

RING

D1

~

~

-

+

SP1

P3100SB

4

1

3

2

R15

100

R16

22.1

R13

806K

R17

300

ALL RESISTORS ARE .100W

UNLESS OTHERWISE NOTED

R4

1M

.063W

.063W

1

C5

0.1uF

C11

0.47uF

Tant

C1

0.1uF

1

2

3

6

5

4

CTRL

1

2

3

6

5

4

CTRL

R12

402K

R22

0 ohm

U3

U2

Drawn: Date:

Company:

Title:

Rev:

JC/MG

10/27/99

B

CP Clare Corp.

CTR21 with Exceptions Reference Design

VCC

R21

12.1

1

2

3

6

5

4

CTRL

U5

R35

Open

C18

0.0047uF

R18

604

C24

0.01uF

R36

4.7Ω

www.clare.com

14

CPC5604

XXX

QTY. Designation Description Manufacturer Package Type

1 U1 CPC5604A Clare 32 Lead SOIC
1 Q1 CPC5602C Clare SOT-223
1 R1 604k 1% Res. Meritek ‘0603
1 R18 604 ohm 1% Res. Meritek ‘0603
1 R2 200k 5% Res. Meritek ‘0603
1 R4 1M 5% Res Meritek 0603
2 R3, R7 150k 5% Res. Meritek ‘0603
2 R5, R6 1.5M 5% Res. Meritek ‘1206
1 R11 10 K 5% Res. Meritek ‘0603
1 R12 402k 1% Res. Meritek ‘0603
1 R15 100 ohm 5% Res. Meritek ‘0603
2 R13, R14 806K 1% Res. 0.063W Meritek ‘0603
1 R16 22.1 1% Res. 1/8W Meritek ‘0603
1 R17 300 ohm 5% Res. Meritek ‘0603
1 R10 10M 5% Res. Meritek ‘0603
1 R19 12M 5% Res. 0.25W Meritek ‘1206
1 R20 1.6M 5% Res. Meritek ‘0805
1 R21 12.1 1% Res. 0.063W Meritek ‘0603
1 R22 0 ohm Meritek ‘0603
1 R35 Open - ‘0603
1 R36 4.7 ohm 5% Res 1/8 W Meritek ‘0603
5 C1, C2, C3, C4, C5 0.1 uf 50V 10% X7R Tecate ‘0805
2 C6, C7 220 pf 2000V NPO 5% Tecate 1808
1 C8 0.1uf 50V 10% X7R Tecate ‘0805
1 C10 0.001uf 500V10% X7R Tecate 1206
1 C11 0.47uf 25V Tant 10% Panasonic SMD
1 C24 0.01uf 50V 10% X7R Tecate 0805
1 D1 Bridge Rectifier Shindengen N/A
1 SP1 Surge Protection Teccor D0-214AA
1 U2 4N35
1 U3 4N35
1 U5 4N35
38 TOTAL

Table 6 - CTR-21 with Exceptions Reference Design Bill of Materials

CPC5604

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15

XXX

Introduction

The LITELINKTM(CPC5604) is a single package
International Data Access Arrangement solution that is
designed to be used in a variety of telephone applica­tions including high performance 56kbps (V.90)
modems. The LITELINKTMuses advanced optical signal
coupling techniques to provide the required electrical
isolation between the telephone and the Customer
Premises Equipment (CPE). The LITELINKTMdiffers
from other solutions using optical or capacitive isolation
techniques by including the barrier inside the IC pack­age, thus eliminating the need for external optocouplers
or high-voltage capacitors in the data path resulting in
overall reduced board space. The LITELINKTMhas
been designed to meet or exceed the requirements of
international regulatory agencies.

For international PTT compliance external passive com­ponents can be changed to meet different country
requirements.

For added flexibility, a second device, the CPC5601,
can be used in conjunction with the CPC5604 to offer a
host programmable solution. The CPC5601 is pro­grammed serially through the host’s microcontroller.
Using the CPC5601 along with the CPC5604 eliminates
the need to change external passive components allow­ing for a flexible, fully international DAA.

Ring Detection via Snoop Circuit

While in the on-hook state (OH deasserted), an internal
multiplexer turns on a “snoop” circuit that actively moni­tors the phone line for two conditions: incoming ring sig­nal and Caller ID (CID) information. The snoop circuit
“snoops” the line continuously while drawing a low 2uA
max. current from the telephone line thus meeting regu­latory requirements. When the central office (CO) places
a ring signal on the telephone line, 90V

RMS

max, the
RING output is pulsed from High to Low for 2 seconds at
the same frequency as the AC signal, typically 20Hz, and
restored to High during the 4 second delay. The ring
detection circuitry is designed to reject false signaling
from pulse dialing circuits or noise on the line.

Caller ID (CID) Detection
via Snoop Circuit

CID is a service offered by the telephone company to
provide caller information (i.e. the caller’s telephone
number) to the called party. The CID signal is present on
the telephone line after the first ring burst is sent from
the CO. After this first ring burst is detected by the host,

the host asserts the CID line which automatically cou­ples the snoop circuit to the RX outputs on the
LITELINK

TM

. After the CID signal is processed by the
host, the host will deactivate the CID signal. At this point
the host can answer the call by asserting the OH signal.
Note that when the LITELINKTMgoes off-hook it auto­matically disconnects the snoop path from both RX and
RING outputs. Signals appearing on the telephone line
are now coupled through the optical isolation barrier in
the LITELINKTMand not via the snoop path.

Hook Switch Control

The OH or off-hook input is used to place the DAA on or
off-hook. When the input is High, the DAA is on-hook or
ready to receive calls from the CO. In this mode the
snoop circuitry is enabled as described above. Driving
OH Low places the DAA off-hook allowing the CO sup­plied loop current to flow (120mA max.), indicating the
DAA is answering or preparing to place a call.

Transmit Signal

Outgoing analog signals to be transmitted to the tele­phone lines are placed differentially on the TX+ and TX­inputs of the CPC5604. Transmit level from the user
device is limited to 0dBm or 2.1Vp-p. The differential
transmit signal is converted to a single ended signal by
the CPC5604. The transmit signal is transferred across
an optical barrier by an electrical-optical-electrical
amplifier, which is transparent to the user. Variations in
gain due to electrical-optical-electrical efficiency are vir­tually eliminated by an on-chip automatic gain control
circuit which sets the input to output gain of the photo­diode amplifier to 1. This results in a TX insertion loss of
+/- 1dB.

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16

CPC5604

XXX

Signals to and from the telephone line to the LiteLink

TM

appear on Tip and Ring connections. The receive signal
is extracted from the transmit signal via the 2-4 wire
hybrid block. The receive signal is then converted to
infrared light by the receive photodiode amplifier and LED
front end. The intensity of the infrared light is modulated
by the receive signal and this light is transferred across
the electrical isolation barrier via reflective dome to a pho­todiode where the light is converted to a photocurrent.
This photocurrent is a highly linear representation of the
receive signal and is amplified and converted to a volt­age. This single ended voltage is converted to a differen­tial voltage signal where it is presented as RX+ and RX­and connects to the receive inputs of the host data pump.

Variations in gain due to quantum efficiency of the optics
are virtually eliminated by an on chip AGC circuit which
automatically sets the input to output gain of the pho­toamplifier to unity. This means that the receive signal on
the telephone line is faithfully reproduced at the RX out­puts in terms of amplitude to within 2dB of the received
signal. Distortion at the RX outputs is -80dB maximum at
a receive level of -3dB over the band of 30Hz-4kHz.

Single supply operation requires that the RX outputs be
biased at 2.5V DC, therefore, it is necessary to use 0.1uf
blocking capacitors for coupling the receive signal to the
host. Figures 2.4.A and 2.4.B. illustrate connection to the
host differentially and single ended respectively.

Receive Signal Path (Refer to Block Diagram)

Figure 2A Connection To Host Differential
(Receive)

Figure 2B Connection To Host Single Ended
(Receive)

RX+

RX-

RX+

RX-

0.1uF

CPC5604A LITELINK

TM

HOST DATA PUMP/CODEC

SINGLE ENDED CONNECTION TO CPC5604A

RX+

RX-

RX+

RX-

0.1uF

0.1uF

CPC5604A LITELINK

TM

HOST DATA PUMP/CODEC

DIFFERENTIAL CONNECTION TO CPC5604A

Transmit Signal Path (Refer to Block Diagram)

Signals that are to be sent from the host to the tele­phone line are placed differentially on TX+ and TX-. The
maximum value of the transmit signal should not
exceed 0dBm or 2.18Vpp. The differential transmit sig­nal is converted to a single ended signal by the
LiteLinkTM. This signal is coupled to the transmit photo­diode amplifier in a similar manner to the receive path.

At the output of this amplifier the voltage signal is cou­pled to a voltage to current converter via a transcon­ductance stage where the transmit signal modulates the
telephone line loop current. As in the receive stage, the
gain of the transmit photodiode amplifier is set to unity
automatically thereby limiting insertion loss to 0±1dB.
Figures 2C and 2D illustrate connection to the host dif­ferentially and single ended respectively.

TXA1

TXA2

-

+

0.1uf

0.1uf

HOST DATA PUMP/CODEC

SINGLE ENDED CONNECTION TO CPC5604A

CPC5604A LITELINKTM

TX-

TX+

Figure 2C Connection To Host Differential
(Transmit)

CPC5604

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17

XXX

Ring Signal Detection

The snoop circuit actively monitors the telephone line
for 2 conditions:

1. Incoming ring signal

2. Caller ID information

The Snoop circuit “snoops” the line continuously while
the LiteLinkTMis in the on-hook mode. Current taken
from the telephone line in the on-hook condition by the
LITELINKTMis maintained at a low 2uA maximum thus
meeting regulatory requirements for minimum on-hook
impedance limitation. When the central office places
the ring signal on the telephone line, that signal is cou­pled through a pair of RC circuits to a differential ampli­fier in the LiteLinkTM.

Referring to Block Diagram, snoop capacitors connect­ed to the SNP1/SNP2 pins provide a high voltage isola­tion barrier between the host and the telephone line
while coupling the AC signals to the snoop amplifier.
The ring signal is digitized and brought out to the RING
pin where the host can qualify it as a valid ring signal.

The ring detection threshold is dependent on the values
of 3 external components: RRXF (R3), RSNOOP (R5 or
R6), and CS (C6 or C7). The default values in the typi­cal bill of materials reflects the parameters in the data
sheet for typical operation. If it is desired to change the
threshold, the values can be selected by using the
equation:

Where f = ring frequency typically 20Hz.

= 330E-3

(R

SNOOP)

2

+ 1

5R

RXF

(2πf CS)

2

V

RING(PEAK)

Figure 2D Connection To Host Single Ended
(Transmit)

Care should be taken when using this equation since
RRXF (R3), CS (C6 or C7), and RSNOOP (R5 or R6)
affect receive gain and Caller ID gain. It is recom­mended that RRXF (R3) be set to the typical value and
then after adjusting the ring detect threshold, check that
CID gain is acceptable.

Caller ID Detection

Caller ID (CID) is a service offered by the telephone
company to provide caller information (i.e. caller’s tele­phone number) to the called party. CID service is
optional and signals only appear on the telephone lines
of subscribers that pay for this feature. The CID infor­mation appears on the telephone line after the first ring
burst is sent from the central office (CO).

Some of the characteristics of the CID signal are sum­marized below:

Parameter Value

Signal Level -13dBm
Link Type Simplex, 2W
Transmission Scheme Phase-coherent, FSK
Logical 1 (mark) 1200±12Hz
Logical 0 (Space) 2200± 22Hz
Transmission Rate 1200bps
Data serial binary async
BER < 10E -5
Bit Duration 833±50uS (same for start/stop as

well)

Full details about the CID signal can be found in Bellcore
document TR-TSY-000030, issue 1/1988.

Figure 2.7.A shows the CID timing diagram. Waveform
#1 represents the Analog signals on the telephone line
(amplitude not drawn to scale), waveform #2 is the dig­ital RING detect output from the LiteLinkTM, waveform
#3 is the CID input to the LiteLinkTMfrom the Host. After
the first ring burst is detected by the host, the host
enables the CID line which automatically couples the
snoop circuit to the RX outputs on the LiteLinkTM.

HOST DATA PUMP/CODEC

TXA1

TXA2

SINGLE ENDED CONNECTION TO CPC5604A

CPC5604A LITELINKTM

0.1uf
TX-

TX+

0.1uf

-

+

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18

CPC5604

XXX

2 s

500ms

3 s

475ms

1ST RING

RING

CID

2ND RING

SINE WAVE

CALLER ID MESSAGE

2 s

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 LiteLinkTM. It’s important to
note that when the LiteLinkTMgoes off-hook, it auto­matically disconnects the snoop path from both the RX
and Ring outputs. Signals appearing on the telephone
line are now coupled through the optical isolation barri­er in the LiteLinkTMand not via the capacitors in the
snoop path.

CID gain from Tip and Ring to Rx+ and Rx- is deter­mined 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 =

10 R

RXF

(R

SNOOP

)2+ 1

(2πf CS)

2

DC characteristics

The LiteLinkTMis designed to meet various country DC
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

ZDC

(R16) and R

DCS

(R20) respectively. Resistor values can
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

LINE

= V

BRIDGE

+

R

DCS

+12MΩ

(R

DCS

)

0.5V+ (I

LINE

- 8mA)R

ZDC

Example: I

LINE

= 20mA, V

BRIDGE

= 1.2V, R

DCS

=

1.69MW, R

ZDC

= 8W, V

LINE

= 6.0V.

CPC5604

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19

XXX

Figure 4 On-Hook DC Resistance Tip/Ring Setup

LITELINKTM DAA Circuit

TIP

RING

100VDC

+

-

A

On-Hook Resistance

Figure 4 shows the test setup for on-hook DC resist­ance. The battery is set to 100VDC and an ammeter is
placed in series with the battery connection. When the
DAA is in the on-hook state, the leakage current is
obtained and then the battery voltage is divided by this
current yielding the on-hook resistance. The LiteLink

TM

is guaranteed to have a leakage current < 10uA at 100V
which is equivalent to an on-hook resistance > 10MΩ
thus meeting regulatory approvals.

Current Limiting

The LiteLinkTMincludes a current limiting feature that is
selectable via resistor R

ZDC

(R16). The current limit

value is set by the equation:

10 12

For US/Canada/Japan the recommended value for
R

ZDC

(R16) is 8Ω which yields a current limit value of
133mA. The current limiting feature is especially useful
in the case where the host system is inadvertently con­nected to a digital PBX telephone port which usually has
a very high current limit value. The current limiting capa­bility will prevent damage to the LiteLinkTMin this sce­nario.

1V

RZDC

1V

RZDC

CTR-21 Compliance

CTR-21 is the standard for connection of data commu­nications equipment to the European telephone net­work. The maximum current limit requirement in
CTR-21 (Section 4.7.1) is 60mA and can be selected by
the following equation:

ILM = + 8mA

Clare recommends current limit be set to 53mA using an
R

ZDC

value of 22Ω. Since VDDis regulated to +3.5V,
excess power is dissipated in the external MOSFET
package. Since the maximum off-hook line voltage and
current in CTR-21 is 40V and 53mA respectively, the
maximum power dissipated by the MOSFET is approxi­mately 2.1W.

AC Characteristics

In a similar manner to the DC characteristics, AC termi­nation impedance is set via R

ZNT

(R18). For all applica-

tions, a 604W resistor for R

ZNT

(R18) is required to

reflect 600W to the CO.

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20

CPC5604

XXX

Differential and Single Ended Mode

The LiteLinkTMis designed to support either differential
or single ended signals on Tx and/or Rx pins. The deci­sion of which topology to use is based on the particular
chipset being used to drive the LiteLinkTM. For example,
most Lucent modem chips require both differential

Receive and Transmit Frequency Response

Figures 4A and 4C show the test circuits for receive and
transmit frequency response respectively. Figures

+3

+2.5

+2

+1.5

+1

+0.5

-0

-0.5

-1

-1.5

-2

-2.5

-3

-3.5

-4

-4.5

-5

Gain

(dBm)

20 50 100 200 500 1K 2K 4K

Frequency (Hz)

Figure 4A Receive Frequency Response Setup

LITELINKTM DAA Circuit

TIP

RING

500

10H

500 10H

48V

+

-

40mA Loop Current

IN1

IN2

AP1

Audio

Precision

Generator

-3dBm/

20Hz-4kHz

RX+

RX-

Audio

Precision

System One

Analyzer

100K

600

V

V

RX

T/R

INSERTION LOSS (dB) = 20 log (V / V )

RX T/R

OH

470

uF

receive and transmit ability, while most Rockwell
devices require differential transmit and single ended
receive. The LiteLinkTMsupports a full 0dBm differential
signal on its Tx inputs.

4B and 4D show the graphs for receive and transmit fre­quency response respectively.

Figure 4B Receive Frequency Response Rx+

CPC5604

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21

XXX

Figure 4C Transmit Frequency Response Setup

+3

+2.5

+2

+1.5

+1

+0.5

-0

-0.5

-1

-1.5

-2

-2.5

-3

-3.5

-4

-4.5

-5

Gain

(dBm)

20 50 100 200 500 1K 2K 4K

Frequency (Hz)

Figure 4D Transmit Frequency Response Tx±

TIP

RING

500 10H

500 10H

600

48V

+

-

40mA Loop Current

IN1

IN2

AP1

Audio

Precision

Generator

50

-3dBm/20Hz-4kHz

TX+

TX-

Audio

Precision

System

One

Analyzer

V

LITELINK

TM

DAA Circuit

INSERTION LOSS (dB) = 20 log (V / V )

TX

T/R

V

TX

T/R

OH

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22

CPC5604

XXX

dB

Distortion

Figures 5A and 5C show the test setup for receive and
transmit distortion. Figures 5B and 5.D show the THD at

Figure 5A Receive Distortion Test Tip/Ring to Rx± Setup

Figure 5B Receive Distortion on Rx±

TIP

RING

500 10H

500 10H

48V

+

-

40mA Loop Current

IN1

IN2

AP1

Audio

Precision

Generator

-9dBm/
600Hz

RX+

RX-

Audio

Precision

System One

Analyzer

100K

600

LITELINK

TM

DAA Circuit

OH

470

uF

600Hz graphs for receive and transmit respectively.
Transmit signal for this test is set to -9dBm.

CPC5604

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23

XXX

Frequency (Hz)

dB

Figure 5C Transmit Distortion Test Tx± to Tip/Ring Setup

TIP

RING

500 10H

500 10H

600

48V

+

-

40mA Loop Current

IN1

IN2

AP1

Audio

Precision

Generator

50

-3dBm/600Hz

TX+

TX-

Audio

Precision

System

One

Analyzer

LITELINKTM DAA Circuit

OH

Figure 5D Transmit Distortion on Tip/Ring

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24

CPC5604

XXX

+0

-2

-4

-6

-8

-10

-12

-14

-16

-18

-20

-22

-24

-26

-28

-30

-32

-34

-36

-38

-40

THL

(dBm)

500 1K 1.5K 2K

Frequency (Hz)

2.5K 3K 3.5K 4K

Trans-Hybrid Loss

As shown in Figure 6A, the Audio Precision, AP1 injects
a signal into the Tx inputs and measures the energy at
Rx with Tip and Ring terminated by a 600Ω nominal

Audio

Precision

Generator

RX-

RX+

TIP

RING

500 10H

500 10H

500uf

600

48V

+

-

40mA Loop Current

Audio Precision

System One

Analyzer

100K

V

IN1

IN2

AP1

50

V

-3dBm/30Hz-4kHz

TX+

TX-

LITELINK

TM

DAA Circuit

THL = 20 log (V /V )

RX

TX

RX

TX

OH

Figure 6A Trans-Hybrid Loss (THL) Test Setup

Figure 6B Trans-Hybrid Loss at Rx± with -3dBm Signal on Tx± Matched to 600Ω Impedance on T/R

impedance. The Tx input frequency is swept from 30Hz­4000Hz and the amplitude of the signal is measured on
the Rx inputs and graphed in Figure 6B.

CPC5604

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25

XXX

Return Loss

The return loss is a measure of impedance mismatch
between a terminating impedance (DAA) and a source
impedance (reference impedance). The AP measures
the return loss vs. frequency with the addition of the
bridge circuit show in Figure 7A. For this test, the refer-

Figure 7A Return Loss Test Setup

Figure 7B Return Loss

-10

-12

-14

-16

-18

-20

-22

-24

-26

-28

-30

-32

-34

-36

-38

-40

-42

-44

-46

-48

-50
500 1K 1.5K 2K 2.5K 3K 3.5K 4K

Frequency (Hz)

RL

(dBm)

+

-

Audio Precision System

One Analyzer

50

A

Audio
Precision
Generator

600

600

V

Z

LITELINK DAA Circuit

TIP

RING

500 10H

500 10H

48V

+

-

40mA Loop Current

0.1% Component tolerances should be used
for accurate measurements

*Note:

TM

X

REF

RL (dB) = 20 log

V

X

V

GEN

-A+

+B-

GEN

V

OH

ence impedance is set by the 600Ω nominal imped­ance, Z

REF

. The impedance that this is to be compared
to is across Tip and Ring connections. The AP sweeps
frequency and graphs frequency vs. return loss as
shown in Figure 7B.

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26

CPC5604

XXX

Snoop Mode Frequency Response

Figure 8A can be used as a reference test setup for this
test with the difference being that the DAA is now in the
on-hook mode. In the on-hook mode, the snoop circuit

Figure 8A Snoop Mode Frequency Response Setup

Figure 8B Snoop Mode Frequency Response At Rx±

+1

+0.8

+0.6

+0.4

+0.2

+0

-0.2

-0.4

-0.6

-0.8

-1

-1.2

-1.4

-1.6

-1.8

-2

-2.2

-2.4

-2.6

-2.8

-3

Gain

(dBm)

500 1K 1.5K 2K

Frequency (Hz)

2.5K 3K 3.5K 4K

LITELINKTM DAA Circuit

TIP

RING

IN1

IN2

AP1

Audio
Precision
Generator

RX+

RX-

Audio

Precision

System One

Analyzer

100K

600

V

V

RX

T/R

CID

path is the signal path from Tip and Ring to Rx through
the capacitive barrier CS instead of the optical path.
Snoop frequency response graph is shown in Figure 8B.

CPC5604

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27

XXX

dBm

500 1K 1.5K 2K

2.5K 3K 3.5K 4K

Figure 9B Snoop Mode THD + N

Figure 9A Snoop Mode Distortion Setup

LITELINKTM DAA Circuit

TIP

RING

IN1

IN2

AP1

Audio

Precision

Generator

-13dbm
1800Hz

RX+

RX-

Audio

Precision

System One

Analyzer

100K

600

V

V

T/R

RX

CID

Snoop Mode Distortion

Figure 9A can be used for the snoop mode distortion
test. Snoop mode operation requires that the DAA be in
the on-hook state and the CID pin asserted (driven
Low). Distortion in the snoop mode is not critical since

—

signals coupled through the snoop circuit are either
20Hz ring signals or FSK CID signals. A graph of
THD+N for the snoop mode is shown in Figure 9B.

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28

CPC5604

XXX

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 tempera­ture 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

+0

-2.5

-5

-7.5

-10

-12.5

-15

-17. 5

-20

-22.5

-25

-27.5

-30

-32.5

-35

-37.5

-40

-42.5

-45

-47.5

-50

-52.5

-55

-57.5

-60

CMRR
(dBm)

5020 100 200 500 1K 2K 4K

Frequency (Hz)

Figure 10A Snoop Mode Common Mode Rejection Ratio Setup

RX-

RX+

TIP

RING

500 10H

500

10H

2.16uf

600

48V

+

-

40mA Loop Current

Audio Precision

System One

Analyzer

100K

V

IN1

IN2

AP1

LITELINK

TM

DAA Circuit

0dbm

Audio
Precision
Generator

RX

V

T/R

500uf

1%

matched

CID

Figure 10B Common Mode Rejection

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 LITELINKTMis on­hook and the frequency is swept from 20Hz to 4kHz.
Figure 10B is a graph of CMRR vs. frequency.

Snoop Mode Common Mode Rejection Ratio (CMRR)

CPC5604

www.clare.com

29

XXX

CTR-21 Countries:

• UK

• France

• Germany

• Spain

• Switzerland

• Italy

• Luxembourg

• Holland

• Belgium

• Netherlands

• Australia

Country Specific Component Values

RZDC ZZNT

US/Far East 8.2W 600W

CTR-21 22.1W 600W

www.clare.com

30

CPC5604

XXX

Interconnection to Rockwell 56k Chipset

C6
220pF
2000V

8

9
10
11
12
13
14
15
16

VCC
TXF1
TX­TX+
TX
NC
GND
OH
RING
CID
RX­RX+
SNP+
SNP­RXF
RX

BR-

TXF2

ZTX
ZNT
TXS

BR­NTS
GAT
REF

DCS
DCF
ZDC

BR-

RPB
RXS
VDD

U1

CPC5604

1
2
3
4
5
6
7

19
18
17

23
22
21
20

25
24

32
31
30
29
28
27
26

C7
220pF
2000V

R8

1.5M

R9

1.5M

C2

0.1uF

R5

200K

C3

0.1uF

R3

150K

R4

604K

ALL RESISTORS ARE .100W

UNLESS OTHERWISE NOTED

R4

1M

C5

0.1uF

C1

0.1uF

Drawn: Date:

Company:

Title:

Rev:

SM

6/24/99

A

CP Clare Corp.

Interconnection to Conexant(Rockwell) (CPC5600A1X)

VCC

Conexant
MCU
L2800

~Rly1(~OH)

~RLY4(~CALLID)

RINGD

70

32

6

Conexant
MDP
R6764

TXA1

TXA2

RiN

R1

10K

.063W

R2

10K

.063W

R3

20K

.063W

30

31

35

Interconnection diagram is based on the Conexant(Rockwell) RC56D Chip solution.

1. Conexant Chipsets rely on a 6dB loss between MDP and tip and ring. This
is solved by placing the R1, R2, R3, resistor circuit in the Transmit Path
and the use of a single end of the differential receive.

-6dB

1

-6dB

1

Refer to LITELINK reference schematics
for typical line side circuit details.

CPC5604

www.clare.com

31

XXX

Interconnection to Lucent 56k Chipset

C6
220pF
2000V

8

9
10
11
12
13
14
15
16

VCC
TXF1
TX­TX+
TX
NC
GND
OH
RING
CID
RX­RX+
SNP+
SNP­RXF
RX

BR-

TXF2

ZTX
ZNT
TXS

BR­NTS
GAT
REF

DCS
DCF
ZDC

BR-

RPB
RXS
VDD

U1

CPC5604

1
2
3
4
5
6
7

19
18
17

23
22
21
20

25
24

32
31
30
29
28
27
26

C7
220pF
2000V

R5

1.5M

R6

1.5M

C2

0.1uF

R2

200K

C3

0.1uF

R3

150K

C4

0.1uF

R1

604K

ALL RESISTORS ARE .100W

UNLESS OTHERWISE NOTED

R4

1M

C5

0.1uF

C1

0.1uF

Drawn: Date:

Company:

Title:

Rev:

SM

6/24/99

A

CP Clare Corp.

Interconnection To Lucent (CPC5600A1X)

VCC

Lucent Technologies
Ven us
DSP1670_160_MQFP

RIDETN

OHRCN

CIDN

AOUTP

AOUTN

AINP

AINN

43

61

62

8

7

11

10

Lucent Technologies
CSP1034_MFQP

0dB

0dB

1

1

1. Lucent chips expect a zero dB drop between the codec and Tip and Ring.

Refer to LITELINK reference schematics
for typical line side circuit details

www.clare.com

32

CPC5604

XXX

Dimensions

mm

(inches)

Mechanical Dimensions

10.287 + .254

(0.405 + 0.010)

7.493 + 0.076

(0.295 + 0.003)

10.363 + 0.127
(0.408 + 0.005)

0.635 + 0.076

(0.025 + 0.003)

0.330 + 0.051

(0.013 + 0.002)

9.525 + 0.076

(0.375 + 0.003)

2.032 Typ.

(0.080 Typ.)

1.981 + 0.051

(0.078 + 0.002)

0.051 + 0.051

(0.002 + 0.002)

Coplaner to A 0.08/(0.003) 32 PL.

A

7.239 + 0.051

(0.285 + 0.002)

0.203

(0.008)

1.016 Typ.

(0.040 Typ.)

0.635 x 45

o

(0.025 x 45o)

11.380
(0.448)

1.650

(0.065)

9.730

(0.383)

0.330

(0.013)

0.635

(0.025)

Recommended Pad Layout

32 Pin SOIC

Specification: ANDS-CPC5604-XX
©Copyright 2001, Clare, Inc.
All rights reserved. Printed in USA.
6/26/01

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Clare, Inc. makes no representations or warranties with respect to
the accuracy or completeness of the contents of this publication
and reserves the right to make changes to specifications and
product descriptions at any time without notice. Neither circuit
patent licenses nor indemnity are expressed or implied. Except as
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Inc. assumes no liability whatsoever, and disclaims any express or
implied warranty, relating to its products including, but not limit­ed to, the implied warranty of merchantability, fitness for a partic­ular purpose, or infringement of any intellectual property right.

The products described in this document are not designed,
intended, authorized or warranted for use as components in sys­tems intended for surgical implant into the body, or in other appli­cations intended to support or sustain life, or where malfunction
of Clare’s product may result in direct physical harm, injury, or
death to a person or severe property or environmental damage.
Clare, Inc. reserves the right to discontinue or make changes to its
products at any time without notice.