3

521 - 62 - 04

3.9k

2

µ2

100k

Ω

SDA

0

µ22

0

µ22

C1

C6

C5

GM3038

C2

C4

C3

C7

0

µ1

0

µ1

0

µ1

0

µ2

10n

R2

150k

Ω

R3

150k

Ω

R4

300k

Ω

ER102

R6

600k

Ω

R5

1M

Ω

R2R

SDA

R3R

R4R

R5S

R5R

R6S

R6R

2

3

4

8

5

6

7

1

SLOW

AVERAGE

DETECTOR

FAST

AVERAGE

DETECTOR

CONTROL

10k

RECTIFIER

50k

REGULATOR

48k

48k

8k4

1M

1M

14k

12k

1

X

- B

- A

- C

24 dB / Oct

BAND SPLIT

FILTER

High Frequency

Expander / Compressor

Low Frequency

Expander / Compressor

R

AGC_IN

RL

53.5k

Ω

85.6k

Ω

4:1

1:1A

MPO

REC

OUT

1:1B

IN

GND

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

50k

All resistors in ohms, all capacitors in farads unless otherwise stated

Fig. 1 Production Test Circuit

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

STAGE A and B

--

-

Open Loop Gain (B)

A

OL_B

-52

-

dB

Input Impedance (A)

R

IN

911

13

k

Ω

OUTPUT STAGE

Stage Gain

A

C

V

IN

=-30dBV

7

9

11

dB

Max Output Level

MPO

R

VC

=220k

Ω,V

IN

=-25dBV

-14.5

-12.5

-10.5

dBV

MPO Range

∆MPO

R2 - set 0 to set 11

13

15

17

dB

Output Resistance

R

OUT

-24

-

k

Ω

ELECTRICAL CHARACTERISTICS continued

Table of Defaults

R2 - set 0

R3 - set 15

R4 - set 7

R5 - set 0

R6 - set 0

Refer to ER102 Data Sheet for GM3038 communication and SDA pin Electrical Characteristics

Conditions: Supply Voltage V

B

= 1.3 V, Frequency = 1 kHz, Temperature = 25

°C

The programmable parameters are adjusted to the following set values unless otherwise specified. (MPO) R2 - set 0; (TH) R3 - set 15;

(FC) R4 - set 7; (HP) R5 - set 0; (LP) R6 - set 0

All conditions and parameters remain as shown in the Test Circuit unless otherwise specified in the CONDITIONS column.