AD1886AJSTZ Analog Devices Inc, AD1886AJSTZ Datasheet - Page 23

• Manufacturer Part Number: AD1886AJSTZ
• Description: IC CODEC STEREO 16BIT 48LQFP
• Manufacturer: Analog Devices Inc
• Series: SoundMAX®r
• Type: Audio Codec '97r

Specifications of AD1886AJSTZ

• Data Interface: Serial
• Resolution (bits): 16 b
• Number Of Adcs / Dacs: 2 / 2
• Sigma Delta: Yes
• Dynamic Range, Adcs / Dacs (db) Typ: 87 / 90
• Voltage - Supply, Analog: 4.75 V ~ 5.25 V
• Voltage - Supply, Digital: 3 V ~ 3.6 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 48-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

SPDIF TRANSMITTER OUTPUT CONNECTION
The codec SPDIF output is located on Pin 48. This pin has a weak internal pull-up that allows detection of SPDIF connector
hardware at power-up and automatically enables or disables the SPDIF transmitter. This feature allows system manufacturers to
populate or depopulate SPDIF connector hardware according to their requirements.
When the output pin is simply left open (NC) or strapped high by a pull-up resistor, the internal sense circuitry disables the
SPDIF transmitter. This condition prevents the SPDIF enable bit on Register 2Ah from being enabled.
When the output pin is strapped low by a pull-down resistor (10 kΩ or less), the SPDIF transmitter is enabled and the SPDIF
enable bit on Register 2Ah can be asserted.
The following circuits (Figure 10 and Figure 11) describe two ways to provide an SPDIF connection to the codec.
(CODEC PIN 48)
SPDIF OUT
SDATA_OUT
22pF
22pF
SDATA_IN
BIT_CLK
RESET
(LOGIC)
SYNC
5V
24.576MHz
10 F
47pF
R2
10k
C1
0.1 F
0.1 F
8.2k
47
R1
0.1 F
4
3
2
1
DVDD
INPUT
VCC
LED
GND
TOSLINK
TOTX173
U1
10
11
12
NOTE
IF NOT USED, GROUND
JACK SENSE PIN.
(PIN 47)
NC
NC
1
2
3
4
5
6
7
8
9
NC = NO CONNECT
DV
XTL_IN
XTL_OUT
DV
SDATA_OUT
BIT_CLK
DV
SDATA_IN
DV
SYNC
RESET
PC_BEEP
U1
5
6
DD1
SS1
SS2
DD2
NC NC
AD1886A
600Z
FB
NC
(CODEC PIN 48)
SPDIF OUT
NOTE
ALL UNUSED ANALOG INPUTS (LINE_IN_L/R, VIDEO_L/R,
MIC1, MIC2, PC_BEEP, PHONE_IN, AND CD_L/R/GND)
MUST BE LEFT UNCONNECTED.
LINE_OUT_R
LINE_OUT_L
AVDD
10k
V
REFOUT
FILT_R
AFILT2
AFILT1
FILT_L
R3
AV
AV
CX3D
RX3D
0.1 F
V
REF
DD1
SS1
1
(CAPABLE OF
12mA DRIVE)
36
35
34
33
32
31
30
29
28
27
26
25
3.3V BUFFER
U1A
+
NC = NO CONNECT
10 F
0.1 F
AVDD
0.1 F
2
240
270pF NPO
R2
110
10 F
R2
270pF NPO
47nF
+
AD1886A
1
4
1:1
T1
0.1 F
5
8
+
+
1 F
1 F
RCA JACK
J1