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參數(shù)資料
| 型號： | CS4207-DNZ |
| 廠商： | Cirrus Logic Inc |
| 文件頁數(shù)： | 25/77頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC CODEC AUD HDPN AMP AUTO 48QFN |
| 標(biāo)準(zhǔn)包裝： | 429 |
| 類型： | 音頻編解碼器 |
| 數(shù)據(jù)接口： | 串行 |
| 分辨率（位）： | 24 b |
| ADC / DAC 數(shù)量： | 2 / 3 |
| 三角積分調(diào)變： | 是 |
| 動態(tài)范圍，標(biāo)準(zhǔn) ADC / DAC (db)： | 105 / 110 |
| 電壓 - 電源，模擬： | 2.97 V ~ 5.25 V |
| 電壓 - 電源，數(shù)字： | 2.97 V ~ 5.25 V |
| 工作溫度： | -40°C ~ 105°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 48-QFN |
| 供應(yīng)商設(shè)備封裝： | 48-QFN-EP（6x6） |
| 包裝： | 托盤 |
| 其它名稱： | 598-1798 |
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DS880F4
31
CS4207
5. PRESENCE DETECTION
5.1
Jack Detection Circuit
The jack detection circuit provides attachment for to up to four pluggable jacks as described in the High Def-
inition Audio Specification. Each jack has an isolated switch (normally open), as shown in Figure 9, which
closes when a plug is inserted into that jack. A “power of two” parallel resistor network is connected to the
SENSE_A pin as shown. The codec will measure the impedance of this network to determine which jacks
have plugs inserted and set (or clear) the corresponding “Presence Detect” bit in the “Pin Sense” control for
that Pin Widget. The jack detect circuitry will remove switch bounce of up to 250-ms duration.
5.1.1
Presence Detection and Unsolicited Response
The Pin Widget, if enabled to generate an unsolicited response, will deliver one such response for each
“de-bounced” state change of the “Presence Detect” bit. The “Presence Detect” bit will be stable and read-
able at the time an unsolicited response is issued. In sensing the insertion or removal of a jack the codec
will measure the impedance continuously to determine when to report a change of state. Reporting of
state change and change in the presence detect state bits will not occur until any impedance change has
initially stabilized for approximately 250ms. Following this de-bounce period, the codec will report an un-
solicited response, if enabled and the HD Audio BITCLK running, within 10ms. If the HD Audio BITCLK is
not running, then the request to wake the Link will occur within 10ms.
Once an unplug or plug event has been signaled to the host via the unsolicited response, another change
of the presence detection bits will not be generated unless the jack state has been sensed (de-bounced)
continuously for at least 250ms.
Pin Widgets programmed to generate Unsolicited Responses for Presence Detection state changes will
continue to function in all power states. When generating an Unsolicited Response for a plug event when
the link is in a low power state (when RESET# is asserted low), sending of an Unsolicited Response will
wait until after the power state change and initialization request and the codec initialization sequence are
complete and the first verb is received to prevent the response from being lost due to software transition
to active power state.
Headphone Out
Left & Right
39.2 k
+/- 1%
nc
To Codec
Mic In
Left & Right
nc
To Codec
Line In
Left & Right
nc
To Codec
Line Out 1
Left & Right
nc
To Codec
20.0 k
+/- 1%
10.0 k
+/- 1%
5.1 k
+/- 1%
To Sense_A
2.67 k
+/- 1%
VA
Figure 9. Jack Presence Detect Circuit
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CS4207-DNZR | 功能描述:接口—CODEC IC Lo Pwr,4/6 HD Aud Codec w/HP Amp 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 |
| CS42080DR8 | 制造商:ON Semiconductor 功能描述: |
| CS4210 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:IEEE 1394 OHCI Controller |
| CS4210A-CNZ | 制造商:Cirrus Logic 功能描述:IC LOW POWER HD AUDIO CODEC - Bulk 制造商:Cirrus Logic 功能描述:HD CODEC |
| CS4210A-CNZR | 功能描述:IC LOW POWER HD AUDIO CODEC RoHS:是 類別:集成電路 (IC) >> 接口 - 編解碼器 系列:* 標(biāo)準(zhǔn)包裝:2,500 系列:- 類型:立體聲音頻 數(shù)據(jù)接口:串行 分辨率（位）:18 b ADC / DAC 數(shù)量:2 / 2 三角積分調(diào)變:是 S/N 比，標(biāo)準(zhǔn) ADC / DAC (db):81.5 / 88 動態(tài)范圍，標(biāo)準(zhǔn) ADC / DAC (db):82 / 87.5 電壓 - 電源，模擬:2.6 V ~ 3.3 V 電壓 - 電源，數(shù)字:1.7 V ~ 3.3 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:48-TQFN-EP（7x7） 包裝:帶卷 (TR) |
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