Dual, Low-Power, 1200Mbps ATE

Driver/Comparator with 35mA Load

______________________________________________________________________________________

21

Pin Description (continued)

PIN

NAME

FUNCTION

48

LDL2

Channel 2 Active-Load Source-Current Reference Input

49

LDH2

Channel 2 Active-Load Sink-Current Reference Input

51

TDATA2

Channel 2 Data-Termination Voltage Input. Termination voltage input for the DATA2 and NDATA2

differential inputs. Not internally connected on versions without internal termination resistors.

52

NDATA2

53

DATA2

Channel 2 Multiplexer Control Inputs. Differential controls DATA2 and NDATA2 select driver 2’s

input from DHV2 or DLV2. Drive DATA2 above NDATA2 to select DHV2. Drive NDATA2 above

DATA2 to select DLV2.

54

TRCV2

Channel 2 RCV Termination Voltage Input. Termination voltage input for the RCV2 and NRCV2

differential inputs. Not internally connected on versions without internal termination resistors.

55

NRCV2

56

RCV2

Channel 2 Multiplexer Control Inputs. Differential controls RCV2 and NRCV2 place channel 2 in

receive mode. Drive RCV2 above NRCV2 to place channel 2 into receive mode. Drive NRCV2

above RCV2 to place channel 2 into drive mode.

57

TLDEN2

Channel 2 Load-Enable Termination Voltage Input. Termination voltage input for the LDEN2 and

NLDEN2 differential inputs. Not internally connected on versions without internal termination resistors.

58

NLDEN2

59

LDEN2

Channel 2 Multiplexer Control Inputs. Differential controls LDEN2 and NLDEN2 enable/disable the

active load. Drive LDEN2 above NLDEN2 to enable the channel 2 active load. Drive NLDEN2

above LDEN2 to disable the channel 2 active load.

61

RST

Reset Input. Asynchronous reset input for the serial register.

RST is active low.

62

CS

Chip-Select Input. Serial port activation input.

CS is active low.

63

THR

Single-Ended Logic Threshold. Leave THR unconnected to set the threshold to +1.25V or force

THR to a desired threshold voltage.

64

SCLK

Serial Clock Input. Clock for serial port.

65

DIN

Data Input. Serial port data input.

67

LDEN1

68

NLDEN1

Channel 1 Multiplexer Control Inputs. Differential controls LDEN1 and NLDEN1 enable/disable the

active load. Drive LDEN1 above NLDEN1 to enable the channel 1 active load. Drive NLDEN1

above LDEN1 to disable the channel 1 active load.

69

TLDEN1

Channel 1 Load-Enable Termination Voltage Input. Termination voltage input for the LDEN1 and

NLDEN1 differential inputs. Not internally connected on versions without internal termination

resistors.