5 Pin Configuration and Functions

Table 5-1 Pin Functions

PIN		I/O	DESCRIPTION
NAME	NO.	I/O	DESCRIPTION
AGND	38	I	Analog ground
AVDD	47	I	Analog supply voltage
BIASJ_A	44	O	Full-scale output current bias for DACA
BIASJ_B	41	O	Full-scale output current bias for DACB
CLKA/CLKIQ	18	I	Clock input for DACA, CLKIQ in interleaved mode
CLKB/RESETIQ	19	I	Clock input for DACB, RESETIQ in interleaved mode
DA[9:0]	1-10	I	Data port A. DA9 is MSB and DA0 is LSB. Internal pulldown.
DB[9:0]	23-32	I	Data port B. DB9 is MSB and DB0 is LSB. Internal pulldown.
DGND	15, 21	I	Digital ground
DVDD	16, 22	I	Digital supply voltage
EXTIO	43	I/O	Internal reference output (bypass with 0.1 μF to AGND) or external reference input
GSET	42	I	Gain-setting mode: H – 1 resistor, L – 2 resistors. Internal pullup.
IOUTA1	46	O	DACA current output. Full-scale with all bits of DA high.
IOUTA2	45	O	DACA complementary current output. Full-scale with all bits of DA low.
IOUTB1	39	O	DACB current output. Full-scale with all bits of DB high.
IOUTB2	40	O	DACB complementary current output. Full-scale with all bits of DB low.
MODE	48	I	Mode Select: H – Dual Bus, L – Interleaved. Internal pullup.
NC	11-14, 33-36	-	Factory use only. Pins must be connected to DGND or left unconnected.
SLEEP	37	I	Sleep function control input: H – DAC in power-down mode, L – DAC in operating mode. Internal pulldown.
WRTA/WRTIQ	17	I	Input write signal for PORT A (WRTIQ in interleaving mode)
WRTB/SELECTIQ	20	I	Input write signal for PORT B (SELECTIQ in interleaving mode)