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TA2123AF

TOSHIBA Bipolar Integrated Circuit Silicon Monolithic

Toshiba 

TA2123AF

Electrical Characteristics

Unless Otherwise Specified: VCC = 1.3V, Ta = 25°C, f = 1kHz, SW1: b, SW2: b, SW3: a,

SW4: OPEN SW5: a, SW6: a, SW7: ON, SW8: a / b, SW9: b,

SW10: ON

Preamplifier: Normal Mode, Rg = 2.2kΩ, RL = 10kΩ, SW1: a

Power Amplifier: Rg 600Ω, RL = 32Ω, SW2: a

Characteristic

Quiescent supply current 1

Quiescent supply current 2

Symbol

ICCQ1

ICCQ2

Test

Cir-

Test Condition

cuit

— OCL mode, PRE + PW

—

OCL mode, PRE: OFF

SW9: a

Min. Typ. Max. Unit

—

2.2 4.0

—

1.7

3.0

Quiescent supply current 3

ICCQ3

—

Coupling mode

PRE + PW, SW4: ON

—

1.5

2.7

mA

Quiescent supply current 4

ICCQ4

Coupling mode

— PRE : OFF, SW4: ON

SW9: a

—

1.0

1.8

Open loop voltage gain

Closed loop voltage gain

Maximum output voltage

Total harmonic distortion

Equivalent input noise

voltage

GVO

GVC

Vom1

THD1

Vni

—

Vo = -22dBV

NF resistor (150Ω): Short

— Vo = -22dBV

— THD = 1%

— VCC = 1V, Vo = -22dBV

Rg = 2.2kΩ

—

BPF: 20Hz~20kHz

NAB (GV = 35dB, f = 1kHz)

SW1: b

65

80

—

dB

—

35

—

160 250

— mVrms

— 0.08 0.3

%

—

1.7

2.7 µVrms

Cross talk (CH-A / CH-B)

Cross talk

(forward / reverse)

Ripple rejection ratio

CT1

CT2

RR1

—

Vo = -22dBV

—

—

fr = 100Hz, Vr = -32dBV

BPF = 100Hz

—

60

—

—

62

—

dB

—

54

—

Preamplifier muting

attenuation

ATT1

—

Vo = -22dBV

SW9: b→a

—

84

—

Driver on resistance

AMS sensitivity 1

AMS sensitivity 2

R1

AMS1

AMS2

— IL = 100µA, SW10: OPEN

— SW5: b

— SW5: a

—

90

—

Ω

-58.3 -56.3 -54.3

dBV

-69.7 -67.7 -65.7

Forward mode on voltage

Reverse mode on current

Preamplifier on voltage

Preamplifier off current

Metal mode on voltage

Normal mode on voltage

V44

I44

V45

I45

V46 (M)

V46 (N)

—

—

—

VCC = 0.95V

—

—

—

0

—

0.3

V

5

—

—

µA

0

—

0.3

V

5

—

—

µA

0.8

— 0.95

V

0

—

0.3

V

15

2002-10-30

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