Datasheet SSM2166 (Analog Devices) - 7
| 制造商 | Analog Devices |
| 描述 | Complete Microphone Conditioner with Variable Compression & Noise Gating in 14-Lead SOIC package |
| 页数 / 页 | 13 / 7 — Data Sheet. SSM2166. 5µV. 20mV. 100 • • • •. • • • •. TA = 25°C. A = … |
| 文件格式/大小 | PDF / 441 Kb |
| 文件语言 | 英语 |
Data Sheet. SSM2166. 5µV. 20mV. 100 • • • •. • • • •. TA = 25°C. A = 25°C. COMPRESSION RATIO = 15:1. AVG = 2.2µF. 0% • • • •
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Data Sheet SSM2166 5µV 1s 20mV 100 • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • 100 • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • 90 90 TA = 25°C T 10 A = 25°C 10 C COMPRESSION RATIO = 15:1 AVG = 2.2µF 0% • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • NOISE BW = 20kHz 0% • • • • • • • • • • • • • • • • SY • ST • E • M • G •A •I • N • = • 0 • d • B • • • • • • • • • • • • • RL = 10kΩ
0 01 13
COMPRESSION RATIO = 1:1
0 7-
10µs
7- 35 35 00 00 Figure 10. Wideband Peak-to-Peak Output Noise Figure 13. Small Signal Transient Response
80 200mV G = 60dB 60 100 • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • 90 G = 40dB 40 ) B d ( G = 20dB IN 20 GA GA V 0 TA = 25°C 10 C ROTATION SET ≈ 1V rms AVG = 2.2µF SYSTEM GAIN = 0dB –20 R 0% • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • COMP = 30kΩ R NOISE GATE SETTING ≈ 550µV rms L = 10kΩ
4
V COMPRESSION RATIO = 1:1 IN = 1mV rms
01
10µs
7-
–40
35 00
1k 10k 100k 1M
1107-
FREQUENCY (Hz)
35 00 Figure 11. VCA Gain Bandwidth Curves vs. Frequency Figure 14. Large Signal Transient Response
–10 RCOMP = 0Ω R –20 GAIN = 1.24kΩ RGATE = 500kΩ RROT PT = 1.74kΩ –30 B) –40 d V+ = 5V ± 1V p-p ( RR S –50 P V+ = 5V ± 0.5V p-p –60 –70 –80
2
20 100 1k 10k 30k
017-
FREQUENCY (Hz)
35 00 Figure 12. PSRR vs. Frequency Rev. F | Page 7 of 13 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM AND TYPICAL SPEECH APPLICATION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION APPLICATIONS INFORMATION SIGNAL PATH LEVEL DETECTOR CONTROL CIRCUITRY Compression Ratio Rotation Point VCA Gain Setting and Muting Downward Expansion Threshold POWER-DOWN FEATURE PCB LAYOUT CONSIDERATIONS OUTLINE DIMENSIONS ORDERING GUIDE
0 01 13
COMPRESSION RATIO = 1:1
0 7-
10µs
7- 35 35 00 00 Figure 10. Wideband Peak-to-Peak Output Noise Figure 13. Small Signal Transient Response
80 200mV G = 60dB 60 100 • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • 90 G = 40dB 40 ) B d ( G = 20dB IN 20 GA GA V 0 TA = 25°C 10 C ROTATION SET ≈ 1V rms AVG = 2.2µF SYSTEM GAIN = 0dB –20 R 0% • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • COMP = 30kΩ R NOISE GATE SETTING ≈ 550µV rms L = 10kΩ
4
V COMPRESSION RATIO = 1:1 IN = 1mV rms
01
10µs
7-
–40
35 00
1k 10k 100k 1M
1107-
FREQUENCY (Hz)
35 00 Figure 11. VCA Gain Bandwidth Curves vs. Frequency Figure 14. Large Signal Transient Response
–10 RCOMP = 0Ω R –20 GAIN = 1.24kΩ RGATE = 500kΩ RROT PT = 1.74kΩ –30 B) –40 d V+ = 5V ± 1V p-p ( RR S –50 P V+ = 5V ± 0.5V p-p –60 –70 –80
2
20 100 1k 10k 30k
017-
FREQUENCY (Hz)
35 00 Figure 12. PSRR vs. Frequency Rev. F | Page 7 of 13 Document Outline FEATURES APPLICATIONS GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM AND TYPICAL SPEECH APPLICATION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION APPLICATIONS INFORMATION SIGNAL PATH LEVEL DETECTOR CONTROL CIRCUITRY Compression Ratio Rotation Point VCA Gain Setting and Muting Downward Expansion Threshold POWER-DOWN FEATURE PCB LAYOUT CONSIDERATIONS OUTLINE DIMENSIONS ORDERING GUIDE