ssm2166p Analog Devices, Inc., ssm2166p Datasheet - Page 5

• Manufacturer Part Number: ssm2166p
• Description: Microphone Preamplifier With Variable Compression And Noise Gating
• Manufacturer: Analog Devices, Inc.

REV. B
100
TPC 7. Rotation Point vs. R
0%
90
0.01
10
–10
–20
1.0
0.1
70
60
50
40
30
20
10
0
1k
0
ROTATION POINT = 1.13V rms
NOISE GATE SETTING = 336 V rms
R
V
TPC 8b. GBW Curves vs. VCA Gain
5 10
IN
COMP
G = 60dB
G = 40dB
G = 20dB
TPC 8a. Wideband Output Noise
T
COMPRESSION RATIO = 15:1
NOISE BW = 20kHz
= 400 V rms
A
5 V
= +25 C
= 40k
15 20 25 30
10k
R
ROT PT
FREQUENCY – Hz
35 40
T
V+ = 5V
R
COMPRESSION RATIO = 1:1
NOISE GATE SETTING
GAIN ADJUST (PIN 2) = 1.25k
A
L
= +25°C
= 100k
RESISTOR – k
45
50 55
ROT PT
100k
60 65 70 75 80 85 90
(Pin 11 to V+)
1s
550 V rms
1M
–5–
100
100
0%
0%
90
90
10
10
–10
–20
–30
–40
–50
–60
–70
–80
TPC 10. Large Signal Transient Response
20
TPC 9. Small Signal Transient Response
R
R
R
R
COMP
GAIN
GATE
ROT
TPC 8c. PSRR vs. Frequency
= 1.74k
= 1.24k
= 500k
= 0
100
200mV
20mV
T
C
SYSTEM GAIN = 0dB
R
COMP RATIO = 1:1
SYSTEM GAIN = 0dB
COMP RATIO = 1:1
T
C
R
A
AVG
L
A
AVG
L
FREQUENCY – Hz
= +25 C
= 10k
= +25 C
= 10k
= 2.2 F
= 2.2 F
1k
V+ = 5±1V p-p
V+ = 5±0.5V p-p
SSM2166
10 s
10 s
10k
30k