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PDF UDA1384 Data sheet ( Hoja de datos )
| Número de pieza | UDA1384 | |
| Descripción | Multichannel audio coder-decoder | |
| Fabricantes | NXP Semiconductors | |
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UDA1384
Multichannel audio coder-decoder
Rev. 02 — 17 January 2005
Product data sheet
1. General description
The UDA1384 is a single-chip consisting of 4 plus 1 Analog-to-Digital Converters (ADC)
and 6 Digital-to-Analog Converters (DAC) with signal processing features employing
bitstream conversion techniques. The multichannel configuration makes the device
eminently suitable for use in digital audio equipment which incorporates surround feature.
The UDA1384 supports conventional 2 channels per line data transfer conformable to the
I2S-bus format with word lengths of up to 24 bits, the MSB-justified format with word
lengths of up to 24 bits and the LSB-justified format with word lengths of 16 bits, 20 bits
and 24 bits, as well as 4 channels to 6 channels per line transfer mode. The device also
supports a combination of the MSB-justified output format and the LSB-justified input
format. The UDA1384 has special sound processing features in the Direct Stream Digital
(DSD) playback mode, de-emphasis, volume and mute which can be controlled via the
L3-bus or I2C-bus interface.
2. Features
2.1 General
s 2.7 V to 3.6 V power supply
s 5 V tolerant digital inputs
s 24-bit data path
s Selectable control: via L3-bus or I2C-bus microcontroller interface
s Supports sample frequency ranges for:
x Audio ADC: fs = 16 kHz to 100 kHz
x Voice ADC: fs = 7 kHz to 50 kHz
x Audio DAC: fs = 16 kHz to 200 kHz
s Separate power control for ADC and DAC
s ADC plus integrated high-pass filter to cancel DC offset
s Integrated digital filter plus DAC
s Slave mode only applications
s Easy application
1 page  
Philips Semiconductors
7. Pinning information
7.1 Pinning
UDA1384
Multichannel audio coder-decoder
Vref 1
VINL1 2
VSSA(AD) 3
VINR1 4
VDDA(AD) 5
VINL2 6
VADCN 7
VINR2 8
VADCP 9
VVOICE 10
TEST 11
UDA1384H
33 VOUT2P
32 VOUT1N
31 VOUT1P
30 I2C_L3
29 VDDD
28 VSSD
27 DATADA3
26 DATADA2
25 DATADA1
24 BCKDA
23 WSDA
001aac311
Fig 2. Pin configuration
7.2 Pin description
Table 3:
Symbol
Vref
VINL1
VSSA(AD)
VINR1
VDDA(AD)
VINL2
VADCN
VINR2
VADCP
VVOICE
TEST
Pin description
Pin Type
1 AIO
2 AIO
3 AGND
4 AIO
5 AS
6 AIO
7 AIO
8 AIO
9 AIO
10 AIO
11 DID
DATAAD2 12 DO
DATAAD1 13 DO
BCKAD
14 DIS
WSAD
15 DI
Description
ADC reference voltage
ADC 1 input left
ADC analog ground
ADC 1 input right
ADC analog supply voltage
ADC 2 input left
ADC reference voltage N
ADC 2 input right
ADC reference voltage P
voice ADC input
test input; must be connected to digital ground (VSSD) in
application
ADC 2 data output
ADC 1 data output
ADC bit clock input
ADC word select input
9397 750 14366
Product data sheet
Rev. 02 — 17 January 2005
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
5 of 55
5 Page 
Philips Semiconductors
UDA1384
Multichannel audio coder-decoder
3.3
VDDD
(V)
VDDA(AD)
Vref
C1 >
10 µF
9 kΩ
RESET
CIRCUIT
9 kΩ
mgu585
Fig 5. Power-on reset circuit
0
3.3
VDDA(AD)
(V)
0
Vref
(V)
1.65
1.25
0.75
0
>250 µs trst
Fig 6. Power-on reset timing
t
t
t
mgu586
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 bits, 20 bits or 24 bits
• Multichannel formats with data word length of 20 bits 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 Figure 7 and Figure 8.
9397 750 14366
Product data sheet
Rev. 02 — 17 January 2005
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
11 of 55
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet UDA1384.PDF ] | |
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