36
36
AVR-3805 / AVC-3890
PCM1804 (AD: IC519)
2
1
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
VREFL
AGNDL
V
COML
V
INL+
V
INL
−
FMT0
FMT1
S/M
OSR0
OSR1
OSR2
BYPAS
DGND
V
DD
VREFR
AGNDR
V
COMR
V
INR+
V
INR
−
AGND
V
CC
OVFL
OVFR
RST
SCKI
LRCK/DSDBCK
BCK/DSDL
DATA/DSDR
TOP VIEW
SCKI
V
IN
L+
V
COM
L
AGNDL
V
REF
L
V
REF
R
AGNDR
V
COM
R
V
IN
R+
V
IN
R
−
OSR0
OSR1
OSR2
S/M
FMT0
FMT1
LRCK/
DSDBCK
BCK/DSDL
DATA /DSDR
OVFL
OVFR
BYPAS
RST
CLK Control
V
IN
L
−
DGND V
DD
AGNDV
CC
Delta-sigma
Modulator (L)
V
REF
L
V
REF
R
Delta-sigma
Modulator (R)
Power Supply
Decimation
Filter (L)
Decimation
Filter (R)
HPF
HPF
Serial
Output
Interface
1
45
8
2 3 4 5 6 7 8
1
IN
ABLC
C1
C2
GND
fo
N.C.
OUT Vcc
Detector &
Comparator
Integrator
TOP
VIEW
CXA1511M (CO: IC501)
Except Japan model
Head
Amp
Limiter
Amp
BPF
BEF
Hysteresis
Comparator
NJM2229S (CV: IC452)
6
7
9
10
13
14
15
16
8 11 12 4 3 2 1
5
1
16
Sync Sepa
Sync Det
Phase
Det
Vsync Sepa
32fH
VCO
1/32
FRONT VIEW
Pin Name
Function
PCM1804 Terminal Function
Pin
No.
1VREFL L-channel voltage reference output, requires capacitors for decoupling to AGND.
2 AGNDL Analog ground for VREFL.
3VCOML L-channel analog common mode output.
4VINL+ I L-channel analog input, positive pin.
5VINL− I L-channel analog input, negative pin.
6 FMT0 I Audio data format 0. See TABLE V. *
7 FMT1 I Audio data format 1. See TABLE V. *
8 S/M I Master/slave mode selection. See TABLE IV. *
9 OSR0 I Oversampling ratio 0. See TABLE I. TABLE II. *
10 OSR1 I Oversampling ratio 1. See TABLE I. TABLE II. *
11 OSR2 I Oversampling ratio 2. See TABLE I. TABLE II. *
12 BYPAS I HPF bypass control. HIGH: HPF disable, LOW: HPF enable. ***
13 DGND Digital ground.
14 VDD Digital power supply.
15 DATA/DSDR O
L-channel and R-channel audio data output in PCM mode. R-channel Audio data output in DSD mode.(DSD output, when DSD mode)
16 BCK/DSDL I/O Bit clock input/output in PCM mode. L-channel audio data output in DSD mode. ***
17 LRCK/DSDBCK I/O Sampling clock input/output in PCM and DSD mode. ***
18 SCKI I System clock input; 128fs, 256fs, 384fs, 512fs or 768fs. **
19 RST I Reset, power down input, active LOW. *
20 OVFR O Overflow signal of R-channel in PCM mode. This is available in PCM mode only.
21 OVFL O Overflow signal of L-channel in PCM mode. This is available in PCM mode only.
22 VCC Analog power supply.
23 AGND Analog ground.
24 VINR− I R-channel analog input, negative pin.
25 VINR+ I R-channel analog input, positive pin.
26 VCOMR R-channel analog common mode output.
27 AGNDR Analog ground for VREFR.
28 V
REFR R-channel voltage reference output, requires capacitors for decoupling to AGND.
I/O
* Schmitt trigger input with internal pull-down (51kohm typically), 5V tolerant.
** Schmitt trigger input, 5V tolerant.
*** Schmitt trigger input.
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