TEA5705 datasheet(3/10 Pages) STMICROELECTRONICS

部件名	TEA5705

功能描述	ADVANCED 4-HEAD PLAY-BACK AND RECORD AMPLIFIER FOR VCR

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制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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3 / 10 page

ABSOLUTE MAXIMUM RATINGS

Symbol

Parameter

Value

Unit

VCC

Power Supply Voltage

6

V

VREC

Power Supply Voltage Record

15

V

TJ

Junction Temperature

+150

oC

Toper

Operating Temperature

0, +70

oC

THERMAL DATA

Symbol

Parameter

Value

Unit

Rth (j-a)

Junction-ambient Thermal Resistance

Typ.

70

oC/W

RECOMMENDED OPERATING CONDITIONS (Tamb =25

oC)

Symbol

Parameter

Min.

Typ.

Max.

Unit

VCC

Power Supply Voltage

4.5

5

5.5

V

VREC

Power Supply Voltage Record

4.75

11.3

12.6

V

CAGC

Capacitance at Pin CAGC

4.7

nF

CSPLP

Capacitance at Pin CSPLP

4.7

nF

ELECTRICAL OPERATING CHARACTERISTICS (Tamb =25

oC unless otherwise specified)

Power Consumption

Parameter

Play-Back

Record (1)

Typ.

Max.

Typ.

Max.

VCC

55mA

70mA

40mA

50mA

VREC

0mA

27mA

33mA

Total

Consumption (2)

VCC =5V, VREC = 9V

250mW

478mW

VCC = 5.5V, VREC = 9.45V

385mW

630mW

Notes : 1.

R1 = 18

Ω

2.

Taking in account only the consumption through the IC.

A great care should be taken to the maximum power consumption : VREC can be increased to 12.6V if the DC current flowing

through the head is reduced. This can be done by increasing R1 value. VREC can be reduced as long as voltage on Pins

IOUT-SP, IOUT-LP is not going under 1V (to forbid output stage saturation).

Play-back Mode

VCC = 5V, no load on Pins CHROMA,LUMA-

Symbol

Parameter

Test Conditions

Min.

Typ. Max.

Unit

ICC1

Supply Current

45

55

70

mA

CHROMA OUTPUT (no AGC)

GPB

Pre-amplification Gain

Sinewave 600 kHz

400mVPP on output

Input on Pin H1-SP or H2-SP, H1-LP or

H2-LP

57

60

63

dB

∆GPB1

Difference of Output Signal on

Pin CHROMA between Channel

1 and Channel 2 in SP Mode

Sinewave 600kHz

0.4mVPP on inputs H1-SP and H2-SP

-1.2

0

1.2

dB

∆GPB2

Difference of Output Signal on

Pin CHROMA between Channel

1 and Channel 2 in LP Mode

Sinewave 600kHz

0.4mVPP on inputs H1-LP and H2-LP

-1.2

0

1.2

dB

eN

Equivalent Input Voltage Noise

Level

Input grounded via switching transistor

on Pins H1-SP, H2-SP, H1-LP, H2-LP,

F = 600kHz

0.6

nV

⁄√

Hz

iN

Equivalent Input Current Noise

Pins H1-SP, H2-SP, H1-LP, H2-LP

1.7

pA

⁄√

Hz

TEA5705

3/10

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