參數(shù)資料
型號(hào): 92HD005DX5NLGXYYX8
廠商: INTEGRATED DEVICE TECHNOLOGY INC
元件分類: 編解碼器
英文描述: 4-CHANNEL HD AUDIO CODEC WITH QUAD DIGITAL MICROPHONE INTERFACE
中文描述: PCM CODEC, QCC48
封裝: ROHS COMPLIANT, QFN-48
文件頁(yè)數(shù): 21/205頁(yè)
文件大?。?/td> 1412K
代理商: 92HD005DX5NLGXYYX8
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92HD005/92HD005D
4-CHANNEL HD AUDIO CODEC WITH QUAD DIGITAL MICROPHONE INTERFACE
PC AUDIO
IDT
21
92HD005/92HD005D
V 1.0 12/06
4-CHANNEL HD AUDIO CODEC WITH QUAD DIGITAL MICROPHONE INTERFACE
For different analog supply voltages, Table 3 summarizes what ports can be detected and the resis-
tor tolerance needed.
Includes pull-up resistors on Sense A/B and series resistors between jack switch and Sense A/B.
See the reference design for more information on Jack Detect implementation.
1.3.8.2.
Impedance Sense
Impedance Sensing is accomplished by on-chip circuitry that tests the impedance at the pin of the
chip and compares it to internal reference impedance. Table 4 describes the bin information and the
codes that are returned when the Pin Widget Impedance field in the Port Pin Sense widget is read.
Please note that even under the best conditions, there is no method to guarantee 100% impedance
sensing due to variations in external circuitry and impedance overlap of devices that can be plugged
into a jack. The impedance sense table reflects both standard Line Out and Headphone output driv-
ers.
Table 3. Jack Detect
AVdd Nominal Voltage
(+/- 5%)
Resistor Tolerance
Sense A
(If port D is used)
Resistor Tolerance
Sense A
(If port D is not used)
Resistor Tolerance
Sense B
(For ports E and F)
5 V
1%
1%
1%
4.5 V
1%
1%
1%
4 V
0.50%
1%
1%
3.3 V
0.10%
1%
1%
Table 4. Impedance Sense
Bins
Return Hex Code
Measured Impedance Level
General Device Detected
000b
0064h
Impedance < 300
Passive Speakers, Headset Speakers
001b
012Ch
Impedance = 300
+/- 25%
Some Headset Speakers
010b
028Ah
300
> Impedance < 1275
Some Microphones
011b
03E8h
Impedance = 1275
+/- 25%
Microphones
100b
07D0h
1275
> Impedance < 2000
Microphones
101b
0BB8h
Impedance = 2000
+/- 25%
Amplified Speakers
110b
2710h
> 2000
Amplified Speakers, Line In
111b
2710h
> 2000
Amplified Speakers, Line In
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參數(shù)描述
92HD005DX5PRGXYYX 制造商:IDT 制造商全稱:Integrated Device Technology 功能描述:4-CHANNEL HD AUDIO CODEC WITH QUAD DIGITAL MICROPHONE INTERFACE
92HD005DX5PRGXYYX8 制造商:IDT 制造商全稱:Integrated Device Technology 功能描述:4-CHANNEL HD AUDIO CODEC WITH QUAD DIGITAL MICROPHONE INTERFACE
92HD005XX3NLGXYYX 制造商:IDT 制造商全稱:Integrated Device Technology 功能描述:4-CHANNEL HD AUDIO CODEC WITH QUAD DIGITAL MICROPHONE INTERFACE
92HD005XX3NLGXYYX8 制造商:IDT 制造商全稱:Integrated Device Technology 功能描述:4-CHANNEL HD AUDIO CODEC WITH QUAD DIGITAL MICROPHONE INTERFACE
92HD005XX3PRGXYYX 制造商:IDT 制造商全稱:Integrated Device Technology 功能描述:4-CHANNEL HD AUDIO CODEC WITH QUAD DIGITAL MICROPHONE INTERFACE