UTC571

LINEAR INTEGRATED CIRCUIT

YOUW ANG ELECTRONICS CO.LTD

2

BLOCK DIAGRAM

VARIABLE

GAIN

RECTIFIER

VREF

1.8V

R1 10K

R2 20K

R3 20K

R4 20K

RECT CAP

RECT IN

GIN

THD TRIM

R3 INVERTER IN

OUTPUT

Characteristic

Symbol

Value

Unit

Maximum Operating Voltage

18

V

Operating Temperature

0~70

°C

Power dissipation

400

mW

Characteristic

Symbol

Test Condition

Min

Typ.

Max

Unit

Supply Voltage

618

v

Supply Current

No signal

3.2

4.8

mA

Output Current capability

±20

mA

Output Slew Rate

SR

±.5

V/

µs

Gsin Cell Distortion

Untrimmed

Trimmed

0.5

0.1

2.0

%

Resister Tolerance

±5

±15

%

Internal Reference Voltage

1.7

1.85

2.0

V

Output DC Shift

Untrimmed

±30

±150

mV

Expandor Output Noise

No signal, 15Hz-20kHz

20

60

µV

Unity Gain Level

1kHz

-1.5

0

+1.5

dBm

Gain Change

±0.1

dB

Reference Drift

+2,-25 +20,-50

mV

Resistor Drift

+8,-0

%

Tracking Error(measured relative

to value at unity gain) Equals [VO-

VO(unity gain)]dB-V2dBm

Rectifier input,

V2=+6dBm,V1=0dB

V2=-30dBm, V1=0dB

+0.2

+0.2

-1,+1.5

dB

Channel Separation

60

dB

Note: 1. Input to V 1 and V 2 grounded.

2. Measured at 0dBm, 1kHz.

3. Expandor AC input change from no signal to 0dBm.

4. Relative to value at T A = 2

C.

5. Electrical characteristics for the UTC571 only are specified over -40 to +8

°C temperature range.

6. 0dBm = 775mV RMS .