IDTSTAC9205X3NBEB2XR IDT, Integrated Device Technology Inc, IDTSTAC9205X3NBEB2XR Datasheet - Page 53
IDTSTAC9205X3NBEB2XR
Manufacturer Part Number
IDTSTAC9205X3NBEB2XR
Description
IC AUDIO CODEC 4CH HD 3.3V 48QFN
Manufacturer
IDT, Integrated Device Technology Inc
Type
Audio Codec, HDr
Specifications of IDTSTAC9205X3NBEB2XR
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
Single Supply Voltage (typ)
3.3V
Single Supply Voltage (min)
3.135V
Single Supply Voltage (max)
3.465V
Package Type
VFQFPN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
STAC9205X3NBEB2XR
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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
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