SSM2165-2P AD [Analog Devices], SSM2165-2P Datasheet - Page 4

• Manufacturer Part Number: SSM2165-2P
• Description: Microphone Preamplifier with Variable Compression and Noise Gating
• Manufacturer: AD [Analog Devices]

SSM2165
0.050
0.050
260
240
220
200
180
160
140
120
100
0.1
80
60
40
20
0.1
5
1
0
1:1
5
1
20
Figure 4. THD + N (%) vs. Frequency (Hz)
0.01
Figure 3. THD + N (%) vs. Input (V rms)
Figure 2. Compression Ratio vs. R
T
V
COMP RATIO = 1:1
V
V
R
T
V
R
A
S
I N
I N
L
T
COMP RATIO = 1:1
R
V
A
S
L
–Typical Performance Characteristics
A
S
L
= +25 C
= +5V
= 100k
= +25 C
= +5V
= 100k
= –20dBu (–1)
= –30dBu (–2)
= +25 C
= 100k /10k
= +5V
100
2:1
SSM2165–2
SSM2165–1
COMPRESSION RATIO
SSM2165–1
FREQUENCY – Hz
INPUT – V rms
5:1
1k
0.1
SSM2165–1
SSM2165–2
SSM2165–2
10:1
10k
COMP
15:1
30k
1
–4–
Figure 7. PSRR vs. Frequency, Referred to Input
–10
–20
–30
–40
–50
–60
–70
70
60
50
40
30
20
10
0
1k
20
Figure 6. GBW Curves vs. VCA Gain
Figure 5. Wideband Output Noise
G = 18dB
100
0%
90
G = 8dB
10
T
COMPRESSION RATIO = 15:1
NOISE BW = 20kHz
A
= +25 C
100
5 V
10k
FREQUENCY – Hz
FREQUENCY – Hz
COMP RATIO = 15:1
R
V
V+ = 5 1V p-p
1k
COMP
IN
= 40 V rms
100k
= 0
1s
10k
30k
1M
REV. A