UDA1325 Ver la hoja de datos (PDF) - Philips Electronics
Número de pieza
componentes Descripción
fabricante
UDA1325 Datasheet PDF : 52 Pages
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Philips Semiconductors
Universal Serial Bus (USB) CODEC
Preliminary specification
UDA1325
SYMBOL
PIN
PIN
QFP64 SDIP42
I/O
DESCRIPTION
VDDA1
VSSA1
Vref(DA)
Vref(AD)
VDDA2
VINL
38
29
− analog supply voltage 1
39
30
− analog ground 1
40
31
O reference voltage output DAC
41
32
O reference voltage output ADC
42
33
− analog supply voltage 2
43
34
I input signal left channel PGA
VSSA2
n.c.
44
35
45
−
− analog ground 2
− 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
XTAL2a
52
39
− supply voltage for crystal oscillator and analog PLL
53
40
O crystal output (analog; ADC)
XTAL1a
54
41
I crystal input (analog; ADC)
VSSA3
P0.0
55
42
− crystal oscillator and analog PLL ground
56
−
I/O Port 0.0 of the microcontroller
DA
57
1
I data Input (digital)
P0.1
58
−
I/O Port 0.1 of the microcontroller
WS
59
2
I word select Input (digital)
P0.2
60
−
I/O Port 0.2 of the microcontroller
BCK
61
3
I bit clock Input (digital)
P0.3
62
−
I/O Port 0.3 of the microcontroller
GP2/DO
63
4
I/O general purpose pin 2 or data output
P0.4
64
−
I/O Port 0.4 of the microcontroller
1999 May 10
7
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