Philips Semiconductors

Preliminary specification

UCB1100

Advanced modem/audio analog front-end

1998 May 08

7

5.1

Pinlist

SYMBOL

PINNING

PIN TYPE

RESET

DESCRIPTION

NOTE

SYMBOL

LQFP48

PIN TYPE

STATE

DESCRIPTION

NOTE

vddd

32, 48

supply

digital supply

vssd

5, 37

ground

digital ground

1

vdda1

17

supply

analogue supply

vssa1

18

ground

analogue ground

1

vdda2

10

supply

analogue speaker driver supply

vssa2

7

ground

analogue speaker driver ground

vssa3

26

ground

touch screen switch matrix ground

sibclk

41

CMOS input

SIB serial interface master clock

sibdin

42

CMOS input

SIB data input

sibdout

40

CMOS output

‘0’ / Hi-Z

SIB data output

2

sibsync

39

CMOS input

SIB synchronization

irqout

43

CMOS output

active-High

‘0’

interrupt output

micp

21

analogue input

Hi-Z

microphone signal input

micgnd

20

analogue input

Hi-Z

microphone ground switch input

sprkp

9

analogue output

Hi-Z

positive speaker output

3

spkrn

8

analogue output

Hi-Z

negative speaker output

3

tinp

15

analogue input

Hi-Z

positive telecom codec input

3

tinn

14

analogue input

Hi-Z

negative telecom codec input

3

toutp

11

analogue output

Hi-Z

positive telecom codec output

3

toutn

12

analogue output

Hi-Z

negative telecom codec output

3

ad0–3

25–22

analogue input

Hi-Z

analogue high voltage inputs

tspx

30

analogue IO

Hi-Z

positive X-plate touch screen

tsmx

28

analogue IO

Hi-Z

negative X-plate touch screen

tspy

27

analogue IO

Hi-Z

positive Y-plate touch screen

tsmy

29

analogue IO

Hi-Z

negative Y-plate touch screen

adcsync

4

digital input

adc synchronization pulse input

vrefbyp

16

analogue IO

Hi-Z

external reference voltage input, external filter connection

io0–9

33–36,

45–47,

1–3

CMOS IO

input

general purpose IO pins

nreset

38

CMOS input

active-Low

asynchronous reset input

test

13

CMOS input

‘0’

test mode protection

4

not used

6, 19,

31, 44

not connected pins

NOTES:

1. The vssd and vssa1 pins are connected to each other within the UCB1100.

2. The first 64 bits of the sib frame will be ‘0’, the remaining bits in the sib frame will be Hi-Z.

3. The spkrp/spkrn, tinp/tiln and toup/toutn are differential pairs.

4. The test pin contains a internal pull down. This pin should be connected to vssd in normal mode of the UCB1100.