TDA7469A 查看數據表（PDF） - STMicroelectronics

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TDA7469A

LOW VOLTAGE ANALOG AUDIO PROCESSOR WITH HEADPHONE POWER AMPLIFIER

STMicroelectronics 

TDA7469

ELECTRICAL CHARACTERISTICS (refer to the test circuit Tamb = 25°C, VS =2.4V, all controls flat

(G = 0dB), f = 1KHz, unless otherwise specified)

Symbol

SUPPLY

Parameter

Test Condition

Min. Typ. Max. Unit

VS

Supply Voltage

VPS

Supply Voltage

ISQ

Supply Current

IPSQ

Quiscent Current

IS

IPS

INPUT STAGE

RIN

Input Resistance

AIN

Input Attenuation Range

Po = 0.5mW +0.5mW

Po = 0.5mW +0.5mW

1.8

2.4

5.0

V

1.5

2.4

5.0

V

10

µA

1

µA

8

mA

15

mA

35

50

65

KΩ

0

6

dB

VOLUME CONTROL

CRANGE Control Range

AMAX

Max. Attenuation

ASTEP

Step Resolution

GMAX

Max. Gain

Gstep Step Resolution

R1

Muxout Load Resistence

-63

6

dB

61

63

65

dB

0.5

1

1.5

dB

6

dB

2

dB

10

KΩ

BASS CONTROL

Gb

Control Range

RB

Internal Feedback Resistance

TREBLE CONTROL

Gt

Control Range

Rt

Internal Resistance

Max. Boost/on

Max. Boost

14

dB

75.6 100.8 126 KΩ

12

dB

25

KΩ

HEADPHONE OUTPUTS

Gout

Output Gain

Pomax Max Output Power

THD = 10%

0

dB

5

8

mW

GENERAL

ENO

Output Noise

THD

SC

RR1

RR2

Distortion

Channel Separation Left/Right

Ripple Rejection

Ripple Rejection

Total Tracking Error

Outout Muted

All gains = 0dB;

BW = 20Hz to 20KHz flat

Av = 0, Vin = 0.1Vrms

VS, f = 100Hz

PVS, f = 100Hz

5

µV

10

µV

0.1

0.5

%

50

dB

-70

dB

-75

dB

0

1

dB

BUS INPUTS

VIL

Input Low Voltage

VIH

Input High Voltage

IIN

Input Current

VO

Output Voltage (ACK)

VIN = 0.4V

IO = 1.6mA

0.5

V

1.9

V

-5

5

µA

0.4

V

NOTE1:

1) BASS and TREBLE response: The center frequency and the response quality can be chosen by the external circuitry.

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