Datasheet
AD9734/AD9735/AD9736
Rev. A | Page 10 of 72
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
A
B
C
D
E
F
DACCLK–
DACCLK+
G
H
J
K
L
MDB0 (LSB)
N
P
1413121110876321954
04862-005
DB1
DB10
DB11
DB12
DB13 (MSB)
DB9
DB8
DB7
DB6
DATACLK_IN
DATACLK_OUT
DB5
DB4
DB3
DB2
Figure 2. AD9736 Digital LVDS Input, Clock I/O (Top View)
Table 6. AD9736 Pin Function Descriptions
Pin No. Mnemonic Description
A1, A2, A3, B1, B2, B3, C1, C2, C3, D2, D3 CVDD18 1.8 V Clock Supply.
A4, A5, A6, A9, A10, A11, B4, B5, B6, B9,
B10, B11, C4, C5, C6, C9, C10, C11, D4, D5,
D6, D9, D10, D11
AVSS Analog Supply Ground.
A7, B7, C7, D7 IOUTB DAC Negative Output. 10 mA to 30 mA full-scale output current.
A8, B8, C8, D8 IOUTA DAC Positive Output. 10 mA to 30 mA full-scale output current.
A12, A13, B12, B13, C12, C13, D12, D13 AVDD33 3.3 V Analog Supply.
A14 DNC Do Not Connect.
B14 I120
Nominal 1.2 V Reference. Tie to analog ground via 10 kΩ resistor to
generate a 120 μA reference current.
C14 VREF
Band Gap Voltage Reference I/O. Tie to analog ground via 1 nF
capacitor; output impedance is approximately 5 kΩ.
D1, E2, E3, E4, F2, F3, F4, G1, G2, G3, G4 CVSS Clock Supply Ground.
D14 IPTAT
Factory Test Pin. Output current, proportional to absolute
temperature, is approximately 10 μA at 25°C with a slope of
approximately 20 nA/°C.
E1, F1 DACCLK−/DACCLK+ Negative/Positive DAC Clock Input (DACCLK).
E11, E12, F11, F12, G11, G12 AVSS Analog Supply Ground Shield. Tie to AVSS at the DAC.
E13 IRQ/UNSIGNED
If PIN_MODE = 0, IRQ: Active low open-drain interrupt request
output, pull up to DVDD33 with 10 kΩ resistor.
If PIN_MODE = 1, UNSIGNED: Digital input pin where 0 = twos
complement input data format, 1 = unsigned.
E14 RESET/PD If PIN_MODE = 0, RESET: 1 resets the AD9736.
If PIN_MODE = 1, PD: 1 puts the AD9736 in the power-down state.
F13 CSB/2×
See the
Serial Peripheral Interface section and the Pin Mode
Operation section for pin description.
F14 SDIO/FIFO See the Pin Mode Operation section for pin description.
G13 SCLK/FSC0 See the Pin Mode Operation section for pin description.
G14 SDO/FSC1 See the Pin Mode Operation section for pin description.
H1, H2, H3, H4, H11, H12, H13, H14, J1, J2,
J3, J4, J11, J12, J13, J14
DVDD18 1.8 V Digital Supply.