IDTSTAC9204X3NBEB2XR IDT, Integrated Device Technology Inc, IDTSTAC9204X3NBEB2XR Datasheet - Page 53

• Manufacturer Part Number: IDTSTAC9204X3NBEB2XR
• Description: IC AUDIO CODEC 4CH HD 3.3V 48QFN
• Manufacturer: IDT, Integrated Device Technology Inc
• Type: Audio Codec, HDr

Specifications of IDTSTAC9204X3NBEB2XR

• Resolution (bits): 24 b
• Number Of Adcs / Dacs: 2 / 2
• Sigma Delta: No
• S/n Ratio, Adcs / Dacs (db) Typ: 98 / 103
• Dynamic Range, Adcs / Dacs (db) Typ: 98 / 95
• Voltage - Supply, Analog: 3.14 V ~ 3.47 V; 3.8 V ~ 4.2 V; 4.28 V ~ 4.73 V; 4.75 V ~ 5.25 V
• Voltage - Supply, Digital: 3.14 V ~ 3.47 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 48-QFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: STAC9204X3NBEB2XR

IDT™
4-CHANNEL HD AUDIO CODEC WITH QUAD DIGITAL MICROPHONE INTERFACE
STAC9204/9205
4-CHANNEL HD AUDIO CODEC WITH QUAD DIGITAL MICROPHONE INTERFACE
[31:7]
[6:5]
[3:0]
Bit
[7]
[4]
Bitfield Name
SPDIFPinLvl
VAGRamp
Override
IBIAS
Rsvd
Table 63. AFG Supply Command Response Format
RW
RW
RW
RW
RW
53
R
Reset
0x0
0x0
0x0
0x1
0x0
Reserved
An internal power supply anti-pop circuit
prevents audible clicks and pops from being
heard when the CODEC is powered on and
off. This function is accomplished by
delaying the charge/discharge of the VREF
capacitor. A value of C
cause a turn-on delay of roughly 3 seconds,
which will allow the power supplies to
stabilize before the CODEC outputs are
enabled. The recommended value of
C
30 seconds. The CODEC outputs are also
kept stable for the same amount of time at
power-off to allow the system to be
gracefully turned off. Setting the VAGRamp
bit speeds up the ramp rate by 10X
(degrading the anti-pop performance), for
easier production testing. Any external
component anti-pop circuit is unaffected by
the internal circuit.
00 = Normal Current
01 = 80% nominal Analog Current
10 = 120% nominal Analog Current
11 = 140% nominal Analog Current
0 = low-level SPDIF Input (special buffer for
1 = standard SPDIF Input (for high level
Supply Override Control.
[0] = invert ADC supply
[1] = invert DAC supply
[2] = supply value
[3] = supply override enable
VREF
low level signals)
signals)
STAC9204/9205
= 10 μF will extend the delay to
Description
VREF
= 1 μF will
PC AUDIO
V 1.0 12/06