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TLV320AIC21 датащи(PDF) 35 Page - Texas Instruments

номер детали TLV320AIC21
подробное описание детали  Low-Power, Highly-Integrated, Programmable 16-Bit, 26-KSPS, Dual-Channel CODEC
PDF  56 Pages
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производитель  TI1 [Texas Instruments]
домашняя страница  http://www.ti.com
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TLV320AIC21 датащи(HTML) 35 Page - Texas Instruments

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D15
D14
D13
D12
D11 D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
SCL
SDA
Start Bit = 0
Stop Bit = 1
SMARTDM Device
Address
(see Table 3-1)
Register
Address
Register Content
TLV320AIC20, TLV320AIC21
TLV320AIC24, TLV320AIC25
TLV320AIC20K, TLV320AIC24K
SLAS363D – MARCH 2002 – REVISED APRIL 2005
Table 2. SMARTDM Device Addresses
TOTAL
CHANNELS POSITION IN CASCADE (1 CODEC HAS 2 CHANNELS)
CHAN-
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
NELS
1
0000
2
0001
0000
3
0010
0001
0000
4
0011
0010
0001
0000
5
0100
0011
0010
0001
0000
6
0101
0100
0011
0010
0001
0000
7
0110
0101
0100
0011
0010
0001
0000
8
0111
0110
0101
0100
0011
0010
0001
0000
9
1000
0111
0110
0101
0100
0011
0010
0001
0000
10
1001
1000
0111
0110
0101
0100
0011
0010
0001
0000
11
1010
1001
1000
0111
0110
0101
0100
0011
0010
0001
0000
12
1011
1010
1001
1000
0111
0110
0101
0100
0011
0010
0001
0000
13
1100
1011
1010
1001
1000
0111
0110
0101
0100
0011
0010
0001
0000
14
1101
1100
1011
1010
1001
1000
0111
0110
0101
0100
0011
0010
0001
0000
15
1110
1101
1100
1011
1010
1001
1000
0111
0110
0101
0100
0011
0010
0001
0000
16
1111
1110
1101
1100
1011
1010
1001
1000
0111
0110
0101
0100
0011
0010
0001
0000
S2C (Start-Stop Communication)
The S
2C is a write-only interface selected by programming bits D1-D0 of control register 2 to 01. The SDA input
is normally in a high state, pulled low (START bit) to start the communication, and pulled high (STOP bit) after
the transmission of the LSB. Figure 30 shows the timing diagram of S
2C. The S2C also supports a broadcast
mode in which the same register of all devices in cascade is programmed in a single write. To use S
2C's
broadcast mode, execute the following steps:
1. Write 111 1000 1111 1111 after the start bit to enable the broadcast mode.
2. Write data to program control register as specified in Figure 30 with bits D14-D11 = XXXX (don't care).
3. Write 111 1000 0000 0000 after the start bit to disable the broadcast mode.
Figure 30. S2C Programming
35



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