XRT83L34(2004) データシートの表示（PDF） - Exar Corporation

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XRT83L34
(Rev.:2004)

QUAD T1/E1/J1 LH/SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR

Exar Corporation 

XRT83L34

QUAD T1/E1/J1 LH/SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR

PRELIMINARY

REV. P1.3.4

TRANSMITTER SECTIONS

SIGNAL NAME

TCLKE

PIN #

107

µPTS2

TTIP_0

13

TTIP_1

19

TTIP_2

84

TTIP_3

90

TRING_0

15

TRING_1

17

TRING_2

86

TRING_3

88

TPOS_0

2

TDATA_0

TPOS_1

127

TDATA_1

TPOS_2

104

TDATA_2

TPOS_3

101

TDATA_3

TNEG_0

3

CODES_0

TNEG_1

126

CODES_1

TNEG_2

105

CODES_2

TNEG_3

100

CODES_3

TYPE

I

O

O

I

I

DESCRIPTION

Transmit Clock Edge - Hardware Mode

With this pin set to a "High", transmit input data of all channels are sampled at

the rising edge of TCLK_n. With this pin tied "Low", input data are sampled at

the falling edge of TCLK_n.

Microprocessor Type Select Input pin 2 - Host Mode

This pin along with µPTS1 (pin 106) selects the microprocessor type. See

“Microprocessor Type Select Input Pins - Host Mode:” on page 10.

NOTE: This pin is internally pulled "Low" with a 50kΩ resistor.

Transmitter Tip Output for Channel _0

Positive differential transmit output to the line.

Transmitter Tip Output for Channel _1

Transmitter Tip Output for Channel _2

Transmitter Tip Output for Channel _3

Transmitter Ring Output for Channel _0

Negative differential transmit output to the line.

Transmitter Ring Output for Channel _1

Transmitter Ring Output for Channel _2

Transmitter Ring Output for Channel _3

Transmitter Positive Data Input for Channel _0 - Dual-rail mode

This signal is the positive-rail input data for transmitter 0.

Transmitter 0 Data Input - Single-Rail mode

This pin is used as the NRZ input data for transmitter 0.

Transmitter Positive Data Input for Channel _1

Transmitter 1 Data Input

Transmitter Positive Data Input for Channel _2

Transmitter 2 Data Input

Transmitter Positive Data Input for Channel _3

Transmitter 3 Data Input

NOTE: Internally pulled “Low” with a 50kΩ resistor for each channels.

Transmitter Negative NRZ Data Input for Channel _0

Dual-Rail mode

This signal is the negative-rail input data for transmitter 0.

Single-Rail mode

This pin can be left unconnected.

Coding Select for Channel _0 - Hardware mode and Single-Rail mode

Connecting this pin "Low" enables HDB3 in E1 or B8ZS in T1 encoding and

decoding for Channel _0. Connecting this pin "High" selects AMI data format.

Transmitter Negative NRZ Data Input for Channel _1

Coding Select for Channel _1

Transmitter Negative NRZ Data Input for Channel _2

Coding Select for Channel _2

Transmitter Negative NRZ Data Input for Channel _3

Coding Select for Channel _3

NOTE: Internally pulled “Low” with a 50kΩ resistor for channel _n

7

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