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PDF UDA1338H Data sheet ( Hoja de datos )
| Número de pieza | UDA1338H | |
| Descripción | Multichannel audio coder-decoder | |
| Fabricantes | NXP Semiconductors | |
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INTEGRATED CIRCUITS
DATA SHEET
UDA1338H
Multichannel audio coder-decoder
Preliminary specification
Supersedes data of 2002 May 23
2002 Nov 21
1 page  
Philips Semiconductors
Multichannel audio coder-decoder
6 BLOCK DIAGRAM
Preliminary specification
UDA1338H
handbook, full pagewidth
2
VINL1
VDDA(AD) VSSA(AD) VADCP VADCN Vref
PGA ADC 1L
5
3 971
ADC 1R PGA
4 VINR1
VINL2
6
PGA ADC 2L
ADC 2R PGA
8 VINR2
10
VVOICE
DATAV
BCKV
WSV
16
17
18
MCCLK
MCMODE
MCDATA
I2C_L3
21
20
22
30
VOUT1N
VOUT1P
VOUT3N
VOUT3P
VOUT5N
VOUT5P
32
31
36
35
42
41
LNA
ADC
DECIMATION FILTER
TEST
11 TEST
DECIMATION
FILTER
HP FILTER
I2S-BUS
INTERFACE 3
PLL
L3-BUS OR
I2C-BUS
CONTROL
INTERFACE
DC-CANCELLATION FILTER
I2S-BUS
INTERFACE 1
I2S-BUS
INTERFACE 2
VOLUME, MUTE, DE-EMPHASIS
CLOCK
PLL
19 SYSCLK
13 DATAAD1
12 DATAAD2
14 BCKAD
15 WSAD
23
WSDA
24 BCKDA
25 DATADA1
26 DATADA2
27 DATADA3
UDA1338H
INTERPOLATION FILTER
NOISE SHAPER
−
+ DAC 1
DAC 2
−
+ DAC 3
DAC 4
−
+ DAC 5
37 40
VDDA(DA)
VSSA(DA)
DAC 6
29 VDDD
28 VSSD
− 34 VOUT2N
+ 33 VOUT2P
− 39 VOUT4N
+ 38 VOUT4P
− 44 VOUT6N
+ 43 VOUT6P
MGU581
2002 Nov 21
Fig.1 Block diagram.
5
5 Page 
Philips Semiconductors
Multichannel audio coder-decoder
Preliminary specification
UDA1338H
handbook, halfpagVeDDA(AD)
Vref
C1 >
10 µF
9 kΩ
RESET
CIRCUIT
9 kΩ
MGU585
Fig.5 Power-on reset circuit.
3.3
handbook, hVaDlfpDagDe
(V)
0
3.3
VDDA(AD)
(V)
t
8.11 Audio digital interface
The following audio formats can be selected via the
microcontroller interface:
• I2S-bus format with data word length of up to 24 bits
• MSB-justified format with data word length of up to
24 bits
• LSB-justified format with data word length of 16, 20 or
24 bits
• Multichannel formats with data word length of
20 or 24 bits. The used data lines are DATAAD1 and
DATADA1 and the sampling frequency must be below
50 kHz.
The formats are illustrated in Figs 7 and 8.
8.12 Voice digital interface
The following voice formats can be selected via the
microcontroller interface:
• I2S-bus format with data word length of up to 20 bits.
The left and the right channels contain the same data.
• Mono channel format with data word length of up to
20 bits.
The formats are illustrated in Fig.9.
0
Vref
(V)
1.65
1.25
0.75
0
>250 µs trst
t
t
MGU586
Fig.6 Power-on reset timing.
2002 Nov 21
11
11 Page | ||
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| PDF Descargar | [ Datasheet UDA1338H.PDF ] | |
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