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WM8978GEFL/V規(guī)格書(shū)詳情
DESCRIPTION
The WM8978 is a low power, high quality stereo codec designed for portable applications such as Digital still camera or Digital Camcorder.
The device integrates preamps for stereo differential mics, and includes drivers for speakers, headphone and differential or stereo line output. External component requirements are reduced as no separate microphone or headphone amplifiers are required.
Advanced on-chip digital signal processing includes a 5-band equaliser, a mixed signal Automatic Level Control for the microphone or line input through the ADC as well as a purely digital limiter function for record or playback. Additional digital filtering options are available in the ADC path, to cater for application filtering such as ‘wind noise reduction’.
The WM8978 CODEC can operate as a master or a slave. An internal PLL can generate all required audio clocks for the Codec from common reference clock frequencies, such as 12MHz and 13MHz.
FEATURES
? Stereo Codec:
? DAC SNR 98dB, THD -84dB (‘A’ weighted @ 48kHz)
? ADC SNR 90dB, THD -80dB (‘A’ weighted @ 48kHz)
? On-chip Headphone Driver with ‘capless’ option
- 40mW output power into 16? / 3.3V SPKVDD
? 0.9W output power into 8? BTL speaker / 5V SPKVDD
- Capable of driving piezo speakers
- Stereo speaker drive configuration
? Mic Preamps:
? Stereo Differential or mono microphone Interfaces
- Programmable preamp gain
- Psuedo differential inputs with common mode rejection
- Programmable ALC / Noise Gate in ADC path
? Low-noise bias supplied for electret microphones
? Other features:
? Enhanced 3-D function for improved stereo separation
? Digital playback limiter
? 5-band Equaliser (record or playback)
? Programmable ADC High Pass Filter (wind noise reduction)
? Programmable ADC Notch Filter
? Aux inputs for stereo analog input signals or ‘beep’
? On-chip PLL supporting 12, 13, 19.2MHz and other clocks
? Low power, low voltage
- 2.5V to 3.6V (digital core: 1.62V to 3.6V)
- power consumption <30mW all-on with 2.5V supplies
? 5x5mm 32-pin QFN package
APPLICATIONS
? Stereo Camcorder or DSC
產(chǎn)品屬性
- 型號(hào)：
WM8978GEFL/V
- 功能描述：
接口—CODEC Stereo Codec with H/P Spkr
- RoHS：
否
- 制造商：
Texas Instruments
- 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
| 供應(yīng)商 | 型號(hào) | 品牌 | 批號(hào) | 封裝 | 庫(kù)存 | 備注 | 價(jià)格 |
|---|---|---|---|---|---|---|---|
WM |
23+ |
NA/ |
23250 |
原裝現(xiàn)貨,當(dāng)天可交貨,原型號(hào)開(kāi)票 |
詢價(jià) | ||
WOLFSON |
2020+ |
QFN-40 |
350000 |
100%進(jìn)口原裝正品公司現(xiàn)貨庫(kù)存 |
詢價(jià) | ||
WM |
23+ |
QFN |
65480 |
詢價(jià) | |||
WM |
22+ |
QFN32 |
12245 |
現(xiàn)貨,原廠原裝假一罰十! |
詢價(jià) | ||
WM |
06+ |
QFN |
97 |
一級(jí)代理,專注軍工、汽車、醫(yī)療、工業(yè)、新能源、電力 |
詢價(jià) | ||
WOLFSON |
23+ |
QFN |
4500 |
全新原裝、誠(chéng)信經(jīng)營(yíng)、公司現(xiàn)貨銷售 |
詢價(jià) | ||
WM |
23+ |
SSOP |
8920 |
價(jià)格優(yōu)勢(shì)/原裝現(xiàn)貨/客戶至上/歡迎廣大客戶來(lái)電查詢 |
詢價(jià) | ||
WM |
1844+ |
QFN |
6852 |
只做原裝正品假一賠十為客戶做到零風(fēng)險(xiǎn)!! |
詢價(jià) | ||
WM |
24+ |
QFN-32 |
2987 |
只售原裝自家現(xiàn)貨!誠(chéng)信經(jīng)營(yíng)!歡迎來(lái)電! |
詢價(jià) | ||
WM |
24+ |
QFN |
45000 |
詢價(jià) |
