IDTSTAC9204X5TAEB2XR IDT, Integrated Device Technology Inc, IDTSTAC9204X5TAEB2XR Datasheet - Page 183
IDTSTAC9204X5TAEB2XR
Manufacturer Part Number
IDTSTAC9204X5TAEB2XR
Description
IC AUDIO CODEC 4CH HD 5V 48-LQFP
Manufacturer
IDT, Integrated Device Technology Inc
Type
Audio Codec, HDr
Datasheet
1.IDTSTAC9204X3TAEB2XR.pdf
(190 pages)
Specifications of IDTSTAC9204X5TAEB2XR
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-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
STAC9204X5TAEB2XR
Available stocks
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Part Number
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Quantity
Price
Company:
Part Number:
IDTSTAC9204X5TAEB2XR
Manufacturer:
IDT, Integrated Device Technology Inc
Quantity:
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6. DESIGN CONSIDERATIONS
IDT™
4-CHANNEL HD AUDIO CODEC WITH QUAD DIGITAL MICROPHONE INTERFACE
STAC9204/9205
4-CHANNEL HD AUDIO CODEC WITH QUAD DIGITAL MICROPHONE INTERFACE
6.1.
External Components
6.1.1.
6.1.2.
The STAC9204/9205 requires a minimum number of external components for proper operation.
Decoupling Capacitor
Decoupling capacitors must be connected between AVDD and AVSS and between DVDD and
DVSS, as close to these pins as possible.
•
•
•
•
For optimum device performance, the decoupling capacitors should be mounted on the CODEC side
of the PCB. Avoid the use of vias in the decoupling circuit.
Other Required Components
The following components are required:
•
•
•
•
•
•
For optimum device performance, these components should be mounted on the CODEC side of the
PCB. Minimize the use of vias.
Between AVDD (pin 38) and AVSS (pins 26 and 42), use a 1.0 mF capacitor in parallel with a
10 mF capacitor.
Between AVDD (pin 25) and AVSS (pins 26 and 42), use a 0.1 mF capacitor in parallel with a
10 mF capacitor.
Between DVDD (pin 1) and DVSS (pins 4 and 7), use a 1.0 mF capacitor in parallel with a 10 mF
capacitor.
Between DVDD (pin 9) and DVSS (pins 4 and 7), use a 0.1 mF capacitor in parallel with a 10 mF
capacitor.
Between VREFFILT (pin 27) and AVSS (pins 26 and 42), use a 1.0 mF capacitor in parallel with
a 10 mF capacitor.
Each of these pins needs to have an 820 pF capacitor connected to AVSS (pins 26 and 42).
(Recommend using NP0 type capacitor.)
•
•
•
•
ADC_VREF (pin 33) must have a 1.0 mF capacitor connected to AVSS (pins 26 and 42). Option-
ally, a 10 mF capacitor may also be connected in parallel, to improve performance.
SENSE_A (pin 13) and SENSE_B (pin 34) must each be connected to AVSS (pins 26 and 42)
with a 1000 pF capacitor located as close to the pins as possible.
SENSE_A (pin 13) and SENSE_B (pin 34) must each be connected to AVDD (pins 25 and 38)
with a 5.11 KW resistor. This resistor MUST be 1% tolerance and should be located as close to
the pins as possible.
Either SENSE_A or SENSE_B is connected to each Port through a resistor. This resistor MUST
be 1% or better tolerance. (For resistor details, see
see the latest IDT reference designs.)
ADC0_AFILT_L (pin 28).
ADC1_AFILT_L (pin 29).
ADC0_AFILT_R (pin 30).
ADC1_AFILT_R (pin 31).
183
Table
3. For details about these connections,
STAC9204/9205
PC AUDIO
V 1.0 12/06
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