SAA7806H NXP [NXP Semiconductors], SAA7806H Datasheet - Page 14
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SAA7806H
Manufacturer Part Number
SAA7806H
Description
One chip automotive CD audio device
Manufacturer
NXP [NXP Semiconductors]
Datasheet
1.SAA7806H.pdf
(73 pages)
- Current page: 14 of 73
- Download datasheet (349Kb)
Philips Semiconductors
9397 750 13697
Objective data sheet
Fig 8. Clocking top level
ARM/AHB/VPB clock
1.536 kHz LCD clock
6.6.1 Features
6.5 AHB core clock generation
6.6 Channel decoder
ARM
Two independent clock dividers are used within SAA7806, one for CD-Slim and the other
for the ARM Advanced High performance Bus (AHB) core.
description of the SAA7806 clocking, AHB fixed clock frequencies are given. A more
detailed description of the CD-Slim clocking is given in
The channel decoder in the SAA7806 is derived from the design used in the SAA7817
DVD decoder IC. The design has been optimized for CD decode functionality (i.e.
EFMPlus demodulation has been removed) and has the following features:
•
•
•
•
1-channel interface to the on-chip 6-bit 67 MHz AD converter
Signal conditioning logic with high-pass filter, DC offset cancellation (Analog Offset
Cancellation; AOC) and AGC logic
HF defect detection circuitry with automatic hold of AGC, AOC, High-Pass Filter
(HPF), PLL and slicer on defect detection
Digital equalizer, noise filter, PLL and slicer
GENERATOR
RAM
LCD
CLOCK
GPIO
ROM
OSCIN
67 MHz baseline clock
ANALOG CLOCK
94
GENERATOR
9.6768 MHz I
Rev. 01 — 20 June 2005
CONTROLLER
I
2
SMIU
INTERRUPT
S-bus bit clock
OSCOUT
2
C-bus clock
93
INTERFACE
AHB
VPB
AHB/
VPB
GENERATOR
UART
CLOCK
One chip automotive CD audio device
4.2336 MHz audio DAC clock
PDSIC
CD-SLIM
I
Figure
2
C-BUS
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
PDSIC clock
8.4672 MHz
Figure 8
10.
HANDLER
gives a top level
I
2
AHB and VPB
S-BUS
SAA7806
operate at
frequency
ARM
001aab752
AUDIO
DAC
14 of 73
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