ad6437 Analog Devices, Inc., ad6437 Datasheet - Page 4

• Manufacturer Part Number: ad6437
• Description: Analog Front End For Adsl
• Manufacturer: Analog Devices, Inc.

This Material Copyrighted By Its Respective Manufacturer
AD6437
Pin Number
1, 24, 64
2, 25, 63, 71
3, 72
4–6, 21, 22, 26, 40, NC
44, 55, 56, 61, 80
7–20
23
27
28, 29
30, 31
32, 39, 54
33, 38, 53
34, 35
36, 37
41, 42
43, 45
46, 47
48
49
50, 51
52
57
58
59
60
62
65–70, 73–78
79
Pin Name
DVDD_5 V
DGND
DVDD_3 V
TX[13:0]
TX_CLK
TX_FSADJ
TX_COMP, TX_IBIAS
TX_DACOUT[A, B]
AGND
AVDD
TX_FILIN[A, B]
TX_FILOUT[B, A]
RX_PGA_IN[B, A]
RX_AAF_OUT[B, A]
RX_ADC_IN[A, B]
RX_VREF
RX_REFGND
RX_REFB, RX_REFT
RX_CML
TR_DAC_OUT
SFRAME
SCLK
SDATA
TEST
RX[0:11]
RX CLK
DVDD_5V
DVDD_3V
NC = NO CONNECT
DGND
TX13
TX12
TX11
TX10
TX3
TX2
TX1
TX0
TX9
TX8
TX7
TX6
TX5
TX4
NC
NC
NC
10
11
12
13
14
15
16
17
18
19
20
1
2
3
4
5
6
7
8
9
80 79 78 77 76
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
PIN 1
IDENTIFIER
Description
+5 V Digital Supply for Converters. Must be connected to 5 V.
Digital Ground.
Digital Supply for Interface. Can be connected to 3.3 V or 5 V to suit different digital circuitry.
No Connect.
Digital Transmit Data to DAC.
DAC Clock Input Data Latched on Positive Edge.
Resistor to AGND from this pin sets the full-scale transmit DAC current output.
Decoupling Pins for Internal Nodes.
Complementary Current Outputs.
Analog Ground.
+5 V Analog Supply.
Differential Input to Transmit LPF.
Differential Output from Transmit LPF.
Differential Input to PGA.
Differential Output of Antialias Filter.
Differential Input to ADC.
External Voltage Reference Output.
External Voltage Reference Ground.
Decoupling Pins for ADC Reference Voltage.
Common-Mode Level. Nominally half the supply voltage.
Voltage Output from Timing Recovery DAC.
Frame Sync for Timing Recovery DAC Data.
Clock for Timing Recovery DAC Serial Data.
Serial Data Input to Timing Recovery DAC.
Factory Test
Digital Output (Receive) Data from ADC.
ADC Clock Input Sampled on Positive Edge.
PIN FUNCTION DESCRIPTIONS
75 74 73 72
PIN CONFIGURATION
(Not to Scale)
TOP VIEW
AD6437
71 70 69 68 67 66 65
–4–
64 63 62 61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
SDATA
SCLK
SFRAME
TR_DAC_OUT
NC
NC
AGND
AVDD
RX_CML
RX_REFT
RX_REFB
RX_REFGND
RX_VREF
RX_ADCINB
RX_ADCINA
RX_AAF_OUTA
NC
RX_AAFOUTB
RX_PGA_INA
RX_PGA_INB
REV. 0