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參數(shù)資料
| 型號(hào)： | 92HD87B2X5NDGXYYX8 |
| 廠商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, QCC40 |
| 封裝： | ROHS COMPLIANT, QFN-40 |
| 文件頁(yè)數(shù)： | 24/204頁(yè) |
| 文件大小： | 2369K |
| 代理商： | 92HD87B2X5NDGXYYX8 |
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IDT CONFIDENTIAL
12
V 0.995 01/11
2009 INTEGRATED DEVICE TECHNOLOGY, INC.
92HD87
SINGLE CHIP PC AUDIO SYSTEM, CODEC+STEREO SPEAKER AMPLIFIER+CAPLESS HP+LDO
Output ports are always on to prevent pops/clicks associated with charging and discharging output
coupling capacitors. This maintains proper bias on output coupling caps even in power state D3 as
long as AVDD is available. Unused ports should be left unconnected. When updating existing
designs to use the codec, ensure that there are no conflicts between the output ports on the codec
and existing circuitry.
2.1.2.
Vref_Out
Ports C & A support Vref_Out pins for biasing electret cartridge microphones. Settings of 80%
AVDD, 50% AVDD, GND, and Hi-Z are supported. Attempting to program a pin widget control with a
reserved or unsupported value will cause the associated Vref_Out pin to assume a Hi-Z state and
the pin widget control Vref_En field will return a value of ‘000’ (Hi-Z) when read.
2.1.3.
Jack Detect
Plugs inserted to a jack on Ports A, B, C are detected using SENSE_A. Plugs inserted to a jack on
Ports F, DMIC0, are detected using SENSE_B. Per HDA015-B, the detection circuit operates when
the CODEC is in D0 - D3 and can also operate if both the CODEC and Controller are in D3 (no bus
clock.) Jack detection requires that all supplies (analog and digital) are active and stable. When
AVDD is not present, the value reported in the pin widget is invalid.
When the HD Audio bus is in a low power state (reset asserted and clock stopped) the CODEC will
generate a Power State Change Request when a change in port connectivity is sensed and then
generate an unsolicited response after the HD Audio link has been brought out of a low power state
and the device has been enumerated. Per HDA015-B, this will take less than 10mS.
The following table summarizes the proper resistor tolerances for different analog supply voltages.
See reference design for more information on Jack Detect implementation.
AFG Power State
Input Enable
Output Enable
Port Behavior
D0-D2
1
Not allowed. Port is active as output. Input path is mute.
1
0
Active - Port enabled as input
0
1
Active - Port enabled as output
0
Inactive -port is powered on (low output impedance) but drives silence only.
D3
-
0
Inactive (lower power) - Port keeps output coupling caps charged if port uses caps.
-
1
Low power state. If enabled, Beep will output from the port
D3cold
-
Inactive (lower power) - Port keeps output coupling caps charged if port uses caps.
D4
-
Inactive (lower power) - Port keeps output coupling caps charged if port uses caps.
D5
-
Off - Charge on coupling caps (if used) will not be maintained.
Table 2. Analog Output Port Behavior
AVdd Nominal
Voltage (+/- 5%)
Resistor Tolerance
Pull-Up
Resistor Tolerance
SENSE_A/B
4.75V
1%
Resistor
SENSE_A
SENSE_B
39.2K
PORT A (HP0)
NA
20.0K
PORT B (HP1)
PORT F
10.0K
PORT C
DMIC0
5.11K
2.49K
Pull-up to AVDD
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| 92HD87B2X5NDGXYYX | SPECIALTY CONSUMER CIRCUIT, QCC40 |
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| 92HD87B3X5NDGXYYX | SPECIALTY CONSUMER CIRCUIT, QCC40 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 92HD87B3X5NDGXRAX | 功能描述:接口—CODEC RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉(zhuǎn)換速率:48 kSPs 接口類型:I2C ADC 數(shù)量:2 DAC 數(shù)量:4 工作電源電壓:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel |
| 92HD87B3X5NDGXRAX8 | 制造商:Integrated Device Technology Inc 功能描述:Audio Codec 2ADC / 2DAC 24-Bit 40-Pin QFN EP T/R 制造商:Integrated Device Technology Inc 功能描述:40QFN - Tape and Reel |
| 92HD87B4X5NDGXRAX | 功能描述:接口—CODEC RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉(zhuǎn)換速率:48 kSPs 接口類型:I2C ADC 數(shù)量:2 DAC 數(shù)量:4 工作電源電壓:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel |
| 92HD87B4X5NDGXRAX8 | 功能描述:接口—CODEC RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉(zhuǎn)換速率:48 kSPs 接口類型:I2C ADC 數(shù)量:2 DAC 數(shù)量:4 工作電源電壓:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel |
| 92HD88B1X5NDGXRAX | 制造商:Integrated Device Technology Inc 功能描述:4CH HD AUDIO CODEC CLASS AB - Bulk |
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