TSH512(2001) 데이터 시트보기 (PDF) - STMicroelectronics

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TSH512
(Rev.:2001)

HiFi stereo/mono infrared transmitter Stereo sub-carrier generator

STMicroelectronics 

TSH512

Symbol

Parameter

Micropho ne Biasing Section

Microphone Biasing Voltage

VMIC-BIAS (see page 15)

∆VMIC-BIAS VMIC-BIAS temperature coefficient

IMIC-BIAS MIC-BIAS current capability

Test condition

Min Typ Max Unit

IMIC-BIAS = 2.5 mA

Over temperature range

[0, 70°C]

IMIC-BIAS = 2.5 mA

over VCC range

[2.3V-5.5V]

2.15

2.5

2.25

160

2.35

V

ppm/°C

mA

PSRR-

MIC-BIAS

Power Supply Rejection Ratio of

MIC-BIAS

enMIC-BIAS Equivalent input noise of MIC-BIAS

Vox Operated Switch (VOX) Section

IVOX-TIMER

Monostable Current Source

(VOX-TIMER pin 29)

VTH-

VOX-TIMER

VMUTE_L

VMUTE_H

Standby

Threshold voltage of the Monostable

(Time Constant)

Low Level Output Voltage

(VOX-MUTE Pin27)

High Level Output Voltage

(VOX-MUTE Pin27)

VSBY_IL

max

Max. Low Level Input Voltage of

Standby input (SBY Pin5)

VSBY_IH

min

VCO Section

Min. High Level Input Voltage of

Standby input (SBY Pin5)

VVCO-BIAS

IVCO-BIAS

VCO-BIAS output voltage

(VCO-BIAS1 pin18 or VCO-BIAS2 pin

38)

VCO-BIAS output current capability

@ 1kHz and

V ripple = 25mVRMS

VCC=2.7V

VCC=5.0V

Vcc = 2.7V

RL = 2 kΩ

RL = 2 kΩ

With No Load

VVCO-BIAS > 1.38V

2.3V < Vcc < 5.5V

50

dB

22

nV/√Hz

42

5

µA

1.4

V

0.2

V

Vcc-0.3

V

0.1xVcc

V

0.9xVcc

V

1.43 1.47 1.51

VDC

40

µA

8

mV/V

δVVCO-BIAS VCO-BIAS voltage drift

PNLO

Phase Noise

S VRVCO-BIAS

Supply Voltage Rejection Ratio of

VCO-BIAS

VCO Output Impedance

ZVCO-OUT (VCO-OUT1 pin22 or VCO-OUT2

pin34)

ZLVCO-OUT Minimum Load Impedance

min

0°C < Tamb < 70°C

Vcc=2.7V

Vcc=5.0V

@ 1kHz,

L = 120µH (Q=30) and

RVCO no connected

With No Load

+100

+160

-80

43

400

1

ppm/°C

ppm/°C

dBc

dB

Ω

kΩ

8/19

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