器件名称:
TS472EIJT
功能描述:
Very Low Noise Microphone Preamplifier with 2V Biased Output and Active Low Standby Mode
文件大小:
611.65KB 共20页
简 介:
TS472 Very Low Noise Microphone Preamplifier with 2V Biased Output and Active Low Standby Mode ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ Low noise: 10nV/√Hz typ. equivalent input noise @ F = 1kHz Fully differential input/output 2.2V to 5.5V single supply operation Low power consumption @20dB: 1.8mA Fast start up time @ 0dB: 5ms typ. Low distortion: 0.1% typ. 40kHz bandwidth @ -3dB and adjustable Active low standby mode function (1A max) Low noise 2.0V microphone bias output Available in flip-chip lead-free package ESD protection (2kV) Flip-chip - 12 bumps Pin Connections (top view) C1 C2 STDBY VCC OUTPUT BIAS GS OUT+ OUT- Description The TS472 is a differential-input microphone preamplifier optimized for high-performance, PDA and notebook audio systems. This device features an adjustable gain from 0dB to 40dB with excellent power-supply and common-mode rejection ratios. In addition, the TS472 has a very low-noise microphone bias generator of 2V. It also includes a complete shutdown function, with active low standby mode. IN+ IN- GND BYPASS Applications ■ ■ ■ ■ Video and photo cameras with sound input Sound acquisition & voice recognition Video conference systems Notebook computers and PDAs Order Codes Part Number TS472EIJT Temperature Range -40, +85°C Package Flip-Chip Packing Tape & Reel Marking 472 October 2005 Rev 2 1/20 www.st.com 20 Typical Application Schematic TS472 1 Typical Application Schematic Figure 1 shows a typical application schematic for the TS472 with ……
