Philips UDA1325

1999 May 10 7

Philips Semiconductors Preliminary speciﬁcation

Universal Serial Bus (USB) CODEC UDA1325

VDDA1 38 29 −analog supply voltage 1

VSSA1 39 30 −analog ground 1

Vref(DA) 40 31 O reference voltage output DAC

Vref(AD) 41 32 O reference voltage output ADC

VDDA2 42 33 −analog supply voltage 2

VINL 43 34 I input signal left channel PGA

VSSA2 44 35 −analog ground 2

n.c. 45 −−not connected

n.c. 46 −−not connected

VINR 47 36 I input signal right channel PGA

EA 48 −−external access (active LOW)

VRN 49 37 I negative reference input voltage ADC

ALE 50 −−address latch enable (active HIGH)

VRP 51 38 I positive reference input voltage ADC

VDDA3 52 39 −supply voltage for crystal oscillator and analog PLL

XTAL2a 53 40 O crystal output (analog; ADC)

XTAL1a 54 41 I crystal input (analog; ADC)

VSSA3 55 42 −crystal oscillator and analog PLL ground

P0.0 56 −I/O Port0.0 of the microcontroller

DA 57 1 I data Input (digital)

P0.1 58 −I/O Port0.1 of the microcontroller

WS 59 2 I word select Input (digital)

P0.2 60 −I/O Port0.2 of the microcontroller

BCK 61 3 I bit clock Input (digital)

P0.3 62 −I/O Port0.3 of the microcontroller

GP2/DO 63 4 I/O general purpose pin 2 or data output

P0.4 64 −I/O Port0.4 of the microcontroller

SYMBOL PIN

QFP64 PIN

SDIP42 I/O DESCRIPTION