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AD1892 Datasheet(PDF) 11 Page - Analog Devices

Part # AD1892
Description  Integrated Digital Receiver/Rate Converter
PDF  24 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD1892 Datasheet(HTML) 11 Page - Analog Devices

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AD1892
REV. 0
–11–
BYTE 2
BITS 0
1
2
3
SOURCE NUMBER
UNSPECIFIED.
0
0
0
0
1
0
0
0
0
1
0
0
1
1
0
0
0
0
1
0
1
2
3
4 TO
14 (BINARY – BIT 0 IS LSB, BIT 3 IS MSB)
15
0
1
1
1
1
1
1
1
BITS 4
5
6
7
CHANNEL NUMBER
UNSPECIFIED.
0
0
0
0
1
0
0
0
0
1
0
0
1
1
0
0
0
1
1
1
A (LEFT IN 2 CHANNEL FORMAT)
B (RIGHT IN 2 CHANNEL FORMAT)
C TO
N (BINARY – BIT 4 IS LSB, BIT 7 IS MSB)
O
1
1
1
1
Figure 10. Consumer Channel Status Byte 2
BYTE 3
BITS 0
1
2
3
FS: SAMPLE FREQUENCY
44.1 kHz.
0
0
0
0
0
1
0
0
1
1
0
0
X X X X
48 kHz.
32 kHz.
ALL OTHER STATES OF BITS 0–3 ARE RESERVED.
BITS 4
5
CLOCK ACCURACY
LEVEL II,
1000 ppm (DEFAULT).
0
0
0
1
1
0
1
1
LEVEL III, VARIABLE PITCH.
LEVEL I,
50 ppm – HIGH ACCURACY.
RESERVED.
BITS 6
7
RESERVED.
X X
BYTES 4–23
RESERVED
Figure 11. Consumer Channel Status Bytes 3 Through 23
48 kHz. MANUAL OVERRIDE OR AUTO SET DISABLED.
SAMPLE FREQUENCY NOT INDICATED.
RECEIVER DEFAULTS TO 48 kHz AND MANUAL
OVERRIDE OR AUTO SET ENABLED.
FS: SAMPLE FREQUENCY
UNLOCKED.
LOCKED–DEFAULT.
LOCK: SOURCE SAMPLE FREQUENCY
ALL OTHER STATES OF BITS 2–4 ARE RESERVED.
CCITT J.17. RECEIVER MANUAL OVERRIDE DISABLED.
50/15 µs. RECEIVER MANUAL OVERRIDE DISABLED.
NONE. RECEIVER MANUAL OVERRIDE DISABLED.
EMPHASIS NOT INDICATED. RECEIVER DEFAULTS
TO NO EMPHASIS WITH MANUAL OVERRIDE ENABLED.
ENCODED AUDIO SIGNAL EMPHASIS
NON-AUDIO. CAN BE USED TO INDICATE AC-3 DATA.
NORMAL AUDIO.
AUDIO
PROFESSIONAL USE OF CHANNEL STATUS BLOCK.
CONSUMER USE OF CHANNEL STATUS BLOCK.
PRO = 1 (PROFESSIONAL)
BYTE 0
BIT 0
0
1
0
BIT 1
1
BITS 2
3
4
0
0
0
1
1
0
1
0
0
X
X
X
0
1
BITS 6
7
0
0
0
1
BIT 5
1
1
0
44.1 kHz. MANUAL OVERRIDE OR AUTO SET DISABLED.
1
0
32 kHz. MANUAL OVERRIDE OR AUTO SET DISABLED.
1
1
BYTE 1
BITS 0
1
2
3
CHANNEL MODE
MODE NOT INDICATED. RECEIVER DEFAULTS TO
2-CHANNEL MODE. MANUAL OVERRIDE ENABLED.
0
0
0
0
0
0
0
1
0
0
1
0
0
0
1
1
0
1
0
0
TWO CHANNELS. MANUAL OVERRIDE DISABLED.
SINGLE CHANNEL. MANUAL OVERRIDE DISABLED.
PRIMARY/SECONDARY (CH. A IS PRIMARY). MANUAL
OVERRIDE DISABLED.
STEREOPHONIC (CH. A IS LEFT). MANUAL OVERRIDE
DISABLED.
0
1
0
1
0
1
1
0
BITS 4
5
6
7
USER BIT MANAGEMENT
0
0
0
0
0
0
0
1
0
0
1
0
0
0
1
1
DEFAULT. NO USER INFORMATION INDICATED.
192 BIT BLOCK STRUCTURE. PREAMBLE 'Z' STARTS
BLOCK.
RESERVED.
ALL OTHER STATES OF BITS 4–7 ARE RESERVED.
RESERVED FOR USED DEFINED APPLICATIONS.
VECTOR TO BYTE 3. RESERVED.
1
1
1
1
RESERVED FOR USED DEFINED APPLICATIONS.
ALL OTHER STATES OF BITS 0–3 ARE RESERVED.
X X X X
USER DEFINED APPLICATION.
X X X X
Figure 12. Professional Channel Status Bytes 0 and 1



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