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PCM1772 Datasheet(PDF) 6 Page - Burr-Brown (TI)

[Old version datasheet] Texas Instruments acquired Burr-Brown Corporation. Click here to check the latest version.
No. de pieza PCM1772
Descripción Electrónicos  LOW VOLTAGE AND LOW POWER STEREO AUDIO DIGITAL TO ANALOG CONVERTER WITH LINEOUT AMPIIFIER
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Fabricante Electrónico  BURR-BROWN [Burr-Brown (TI)]
Página de inicio  http://www.burr-brown.com
Logo BURR-BROWN - Burr-Brown (TI)

PCM1772 Datasheet(HTML) 6 Page - Burr-Brown (TI)

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PCM1772
PCM1773
SLES010D – SEPTEMBER 2001 – REVISED MAY 2004
www.ti.com
6
Terminal Functions
PCM1773PW
TERMINAL
I/O
DESCRIPTIONS
NAME
NO.
I/O
DESCRIPTIONS
AGND1
5
Analog ground. This is a return for VCC1.
AGND2
6
Analog ground. This is a return for VCC2.
AIN
10
Monaural analog signal mixer input. The signal can be mixed with the output of L- and R-channel DACs.
AMIX
14
I
Analog mixing control
BCK
3
I
Serial bit clock. Clocks the individual bits of the audio data input, DATA.
DATA
2
I
Serial audio data input
DEMP
13
I
De-emphasis control
FMT
15
I
Data format select
LRCK
1
I
Left and right clock. Determines which channel is being input on the audio data input, DATA. The frequency of LRCK
must be the same as the audio sampling rate.
PD
4
I
Reset input. When low, the PCM1773 device is powered down, and all mode control registers are reset to default
settings.
SCKI
16
I
System clock input
VCC1
12
Power supply for all analog circuits except the lineout amplifier
VCC2
11
Analog power supply for the lineout amplifier circuits. The voltage level must be the same as VCC1.
VCOM
7
Decoupling capacitor connection. An external 10-
µF capacitor connected from this terminal to analog ground is
required for noise filtering. Voltage level of this terminal is 0.5 VCC2 nominal.
VOUTL
9
O
L-channel analog signal output of the lineout amplifiers
VOUTR
8
O
R-channel analog signal output of the lineout amplifiers
PCM1773RGA
TERMINAL
I/O
DESCRIPTIONS
NAME
NO.
I/O
DESCRIPTIONS
AGND1
4
Analog ground. This is a return for VCC1.
AGND2
5
Analog ground. This is a return for VCC2.
AIN
10
Monaural analog signal mixer input. The signal can be mixed with output of L- and R-channel DACs.
AMIX
14
I
Analog mixing control
BCK
2
I
Serial bit clock. Clocks the individual bits of the audio data input, DATA.
DATA
1
I
Serial audio data input
DEMP
13
I
De-emphasis control
FMT
15
I
Data format select
LRCK
20
I
Left and right clock. Determines which channel is being input on the audio data input, DATA. The frequency of LRCK
must be the same as the audio sampling rate.
NC
8, 17,
18, 19
No connect
PD
3
I
Reset input. When low, the PCM1773 device is powered down, and all mode control registers are reset to default
settings.
SCKI
16
I
System clock input
VCC1
12
Power supply for all analog circuits except the lineout amplifier
VCC2
11
Analog power supply for the lineout amplifier circuits. The voltage level must be the same as VCC1.
VCOM
6
Decoupling capacitor connection. An external 10-
µF capacitor connected from this terminal to analog ground is
required for noise filtering. Voltage level of this terminal is 0.5 VCC2 nominal.
VOUTL
9
O
L-channel analog signal output of the lineout amplifiers
VOUTR
7
O
R-channel analog signal output of the lineout amplifiers


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