
REV. 0
AD9860/AD9862
–7–
Pin No.
Mnemonic
Function
Clock Pins
10
11, 16
12
13
14
DLL_Lock
AGND
NC
AVDD
OSC1
DLL Lock Indicator Pin
DLL Analog Ground Pins
No Connect
DLL Analog Supply Pin
Single Ended Input Clock
(or Crystal Oscillator Input)
Crystal Oscillator Input
Controls CLKOUT1 Rate
Clock Output Generated from Input
Clock (DLL Multiplier Setting
and CLKOUT2 Divide Factor)
Clock Output Generated from
Input Clock (1 if CLKSEL = 1
or /2 if CLKSEL = 0)
15
17
64
OSC2
CLKSEL
CLKOUT2
65
CLKOUT1
Various Pins
1
3, 4, 13
2, 9
5
AUX_ADC_A1
AVDD
AGND
SIGDELT
Auxiliary ADC A Input 1
Analog Power Pins
Analog Ground Pins
Digital Output from
Programmable Sigma-Delta
Auxiliary DAC A Output
Auxiliary DAC B Output
Auxiliary DAC C Output
Digital Power Supply Pin
6
7
8
33, 36, 53, DVDD
59, 61, 66,
93
34, 35, 52, DGND
58, 60, 67,
94
54
55
56
57
63
95
AUX_DAC_A
AUX_DAC_B
AUX_DAC_C
Digital Ground Pin
SCLK
SDO
SDIO
SEN
RESETB
AUX_SPI_do
Serial Bus Clock Input
Serial Bus Data Bit
Serial Bus Data Bit
Serial Bus Enable
Reset (SPI Registers and Logic)
Optional Auxiliary ADC Serial Bus
Data Out Bit
Optional Auxiliary ADC Serial Bus
Data Out Latch Clock
Optional Auxiliary ADC Serial Bus
Chip Select Bit
Auxiliary ADC A Input 2
Auxiliary ADC B Input 1
Auxiliary ADC B Input 2
96
AUX_SPI_clk
97
AUX_SPI_csb
128
126
125
127
AUX_ADC_A2
AUX_ADC_B1
AUX_ADC_B2
AUX_ADC_REF Auxiliary ADC Reference
Pin No.
Mnemonic
Function
Receive Pins
68/70
–
79
D0A to
D9A/D11A
D0B to
D9B/D11B
RxSYNC
10-/12-Bit ADC Output of
Receive Channel A
10-/12-Bit ADC Output of
Receive Channel B
Synchronization Clock for
Channel A and Channel B Rx Paths
Analog Supply Pins
80/82
–
91
92
98, 99,
104, 105,
117, 118,
123, 124,
100, 103, AGND
106, 109,
110, 112,
113, 116,
119, 122,
101
AVDD
Analog Ground Pins
REFT_B
Top Reference Decoupling for
Channel B ADC
Bottom Reference Decoupling
for Channel B ADC
Receive Channel B Differential (+) Input
Receive Channel B Differential ( ) Input
Internal ADC Voltage Reference
Receive Channel A Differential ( ) Input
Receive Channel A Differential (+) Input
Bottom Reference Decoupling for
Channel A ADC
Top Reference Decoupling for
Channel A ADC
102
REFB_B
107
108
111
114
115
120
VIN+B
VIN
–
B
VREF
VIN
–
A
VIN+A
REFB_A
121
REFT_A
Transmit Pins
18, 20
23, 32
19, 24,
27, 28, 31
21
22
25
AVDD
Analog Supply Pins
AGND
Analog Ground Pins
REFIO
FSADJ
IOUT
–
A
Reference Output, 1.2 V Nominal
Full-Scale Current Adjust
Transmit Channel A DAC
Differential ( ) Output
Transmit Channel A DAC
Differential (+) Output
Transmit Channel B DAC
Differential (+) Output
Transmit Channel B DAC
Differential ( ) Output
12-/14-Bit Transmit DAC Data
(Interleaved Data when Required)
Synchronization Input for Transmitter
Configures Default Timing Mode,
TxBLANK
*
Controls Tx Digital Power Down
26
IOUT+A
29
IOUT+B
30
IOUT
–
B
37
–
48/50
Tx11/Tx13
to Tx0
TxSYNC
MODE/
51
62
*
The logic level of the Mode/TxBLANK pin at power up defines the default timing
mode; a logic low configures Normal Operation, logic high configures Alternate
Operation Mode.
PIN FUNCTION DESCRIPTIONS