ACS411CS View Datasheet(PDF) - Semtech Corporation

Part Name

Description

MFG CO.

ACS411CS

Acapella Optical Modem IC

Semtech Corporation 

Pin Description ACS4110 part 1.

Pin

Sym

6,38,

52,82,

85,94, VD+

105,139,

161,162

IO

Name

-

+ve power

supply

Description

Power supply, 4.75 - 5.25

Volts.

115

VA+

-

+ve power

supply

Power supply for Clock

Recovery PLL, 4.75 - 5.25

Volts.

5, 37,

51,81,

84,108,

122,123,

124,128,

130,138,

159,160

GND

- Ground

Power Supply

41

TPOS1

33

TPOS2

27

TPOS3

21

TPOS4

15

TPOS5

9

TPOS6

1

171

165

47

TPOS7

TPOS8

TPOS9

TPOS10

I

Transmit Data

Positive

Transmit channel 1-16,

corresponds to +ve in bipolar

signal.

55 TPOS11

61 TPOS12

67 TPOS13

73 TPOS14

79 TPOS15

154 TPOS16

42

TNEG1

34

TNEG2

28

TNEG3

22

TNEG4

16

TNEG5

10

TNEG6

2

172

166

48

TNEG7

TNEG8

TNEG9

TNEG10

I

Transmit Data

Negative

Transmit channel 1-16,

corresponds to -ve in bipolar

signal.

56 TNEG11

62 TNEG12

68 TNEG13

74 TNEG14

80 TNEG15

153 TNEG16

39

RPOS1

30

RPOS2

24

RPOS3

18

RPOS4

12

RPOS5

4

RPOS6

174

168

158

44

RPOS7

RPOS8

RPOS9

RPOS10

O

Receive Data

Positive

Receive channel 1-16,

corresponds to +ve in bipolar

signal.

50 RPOS11

58 RPOS12

64 RPOS13

70 RPOS14

76 RPOS15

87 RPOS16

Pin Description ACS4110 part 2.

Pin

Sym IO

Name

Description

36 RNEG1

31 RNEG2

25 RNEG3

19 RNEG4

13 RNEG5

7

RNEG6

175

169

163

45

RNEG7

RNEG8

RNEG9

RNEG10

O

Receive Data

Negative

Receive channel 1-16,

corresponds to -ve in bipolar

signal.

53 RNEG11

59 RNEG12

65 RNEG13

71 RNEG14

77 RNEG15

88 RNEG16

When DCD=1, then the

131

DCD

O

Data Carrier

Detect

communicating modems have

synchronised, and are

communicating.

Connect fundamental parallel

120

121

XTI/

XTO

-

System Clock

Crystal

resonance crystal with

appropriate padding capacitor

to GND.

129

PORB

I

Power On

Reset

Will initialise the device when

PORB= 0. PORB is normally

connected to an RC circuit so

that a POR is automatically

invoked on power-up. PORB=

1 for normal operation.

Transmit

156 TmCLK I/O maintenance

CLK

Transmit maintenance Clock.

samples TmD on edge selected

by TRSEL control.

Receive

155 RmCLK O maintenance

Clock

Receive maintenance Clock.

samples RmD on edge selected

by RESEL control..

When RESEL = 1,

RPOS/RNEG and RmD data is

116

RESEL

I

Receive Edge

Select

valid on the rising edge of

RCLK/RmCLK. When RESEL

= 0, the data is valid on the

falling edge of RCLK/RmCLK.

When TRSEL = 0,

TPOS/TNEG and TmD data is

104

TRSEL

I

Transmit Edge latched on the falling edge of

Select

TCLK/TmCLK. When TRSEL

=1, the data is latched on the

rising edge of TCLK/TmCLK.

95

TmD1

Transmit

I maintenance

Data

NRZ maintenance channel.

TmD is sampled on the

TmCLK clock edge defined by

TRSEL.

92

RmD2

Receive

O maintenance

Data

NRZ maintenance channel.

RmD is sampled on the

RmCLK clock edge defined by

RESEL.

37

ACS411CS PRE-RELEASE Issue 6.0 July 1999.

Share Link: