Datasheet

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TEF6901A_3 © NXP B.V. 2008. All rights reserved.

Product data sheet Rev. 03 — 20 March 2008 31 of 107

NXP Semiconductors

TEF6901A

Integrated car radio

Fig 17. AF update mode

Fig 18. AF update mode, started during mute

001aab531

1 ms PLL

2 ms

PLL

0.5 ms

counter and detector result HOLD until I

2

C-bus read

P

HOLD

'00'

'01'

'10'

'11'

'10'

'00''00'

tuning

tuning mute

WS processing

register SWAP

IF counter reset

quality detector reset

IF counter hold

quality detector hold

time

I

2

C-bus

TAS read

f1 f2 f2 f1

1 ms

001aab532

PLL

0.5 ms

counter and detector result HOLD until I

2

C-bus read

P

HOLD

FAST

'10'

'11'

'00' '00'

tuning

tuning mute

WS processing

register SWAP

IF counter reset

quality detector reset

IF counter hold

quality detector hold

time

I

2

C-bus

TAS read

f2 f1

1 ms