Harman Kardon AVR 525, Service Manual

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GENERAL DESCRIPTION
The AK4114 is a digital audio transceiver supporting 192kHz, 24bits. The channel status decoder
supports both consumer and professional modes. The AK4114 can automatically detect a Non-PCM bit
stream. When combined with the multi channel codec (AK4527B or AK4529), the two chips provide a
system solution for AC-3 applications. The dedicated pins or a serial µP I/F can control the mode setting.
The small package, 48pin LQFP saves the system space.
*AC-3 is a trademark of Dolby Laboratories.
FEATURES
o AES3, IEC60958, S/PDIF, EIAJ CP1201 Compatible
o Low jitter Analog PLL
o PLL Lock Range : 32kHz to 192kHz
o Clock Source: PLL or X'tal
o 8-channel Receiver input
o 2-channel Transmission output (Through output or DIT)
o Auxiliary digital input
o De-emphasis for 32kHz, 44.1kHz, 48kHz and 96kHz
o Detection Functions
•
Non-PCM Bit Stream Detection
•
DTS-CD Bit Stream Detection
•
Sampling Frequency Detection
(32kHz, 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz)
•
Unlock & Parity Error Detection
•
Validity Flag Detection
o Up to 24bit Audio Data Format
o Audio I/F: Master or Slave Mode
o 40-bit Channel Status Buffer
o Burst Preamble bit Pc and Pd Buffer for Non-PCM bit stream
o Q-subcode Buffer for CD bit stream
o Serial µP I/F
o Two Master Clock Outputs: 64fs/128fs/256fs/512fs
o Operating Voltage: 2.7 to 3.6V with 5V tolerance
o Small Package: 48pin LQFP
o
Ta: -10 to 70
°
C
AK4114
High Feature 192kHz 24bit Digital Audio Interface Transceiver
IPS0/RX4
RX3
1
AVSS
48
2
DIF0/RX5 3
TEST2 4
DIF1/RX6 5
AVSS 6
DIF2/RX7 7
IPS1/IIC 8
P/SN 9
XTL0 10
XTL1
AVSS
47
RX2
46 45 44
AVSS
43
RX0
42
AVSS
41
VCOM
40
R
39
AVDD
38
TVDD
13
NC
14
TX0
15
TX1
16
BOUT
17 18
UOUT
19
VOUT
20
DVDD
21
DVSS
22
MCKO1
23
36
35
34
33
32
31
30
29
28
27
26 INT0
OCKS0/CSN/CAD0
OCKS1/CCLK/SCL
CM1/CDTI/SDA
CM0/CDTO/CAD1
PDN
XTI
XTO
DAUX
MCKO2
BICK
AK4114VQ
Top View
COUT
TEST1 RX1 INT1
37
LRCK
24
11
VIN 12 25 SDTO
AVR525 harman/kardon
156