ssm2166p Analog Devices, Inc., ssm2166p Datasheet
ssm2166p
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ssm2166p Summary of contents
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... INPUT – dBu VCA GAIN ADJ 13 OUTPUT 500k 9 NOISE GATE SET 17k 11 ROTATION POINT SET COMPRESSION RATIO SET * OPTIONAL © 2003 Analog Devices, Inc. All rights reserved. * –10 0 www.analog.com ...
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SSM2166–SPECIFICATIONS Parameter AUDIO SIGNAL PATH Voltage Noise Density Noise Total Harmonic Distortion Input Impedance Output Impedance Load Drive Buffer Input Voltage Range Output Voltage Range VCA Input Voltage Range Output Voltage Range Gain Bandwidth Product CONTROL SECTION VCA Dynamic Gain ...
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Pin No. Mnemonic 1 GND 2 GAIN ADJUST 3 VCA IN 4 VCA R 5 BUF OUT 6 –IN 7 AUDIO +IN 8 AVG CAP 9 NOISE GATE SET 10 COMP RATIO SET 11 ROTATION SET 12 POWER DOWN 13 ...
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SSM2166–Typical Performance Characteristics 0 COMP RATIO = 15:1 COMP RATIO = 10:1 COMP RATIO = 5:1 –10 –20 –30 – +25 – 300mV rms @ 1kHz IN – 100k L ...
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T = +25° 100k L COMPRESSION RATIO = 1:1 NOISE GATE SETTING GAIN ADJUST (PIN 2) = 1.25k 0.1 0. ...
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SSM2166 APPLICATION INFORMATION The SSM2166 is a complete microphone signal conditioning system on a single integrated circuit. Designed primarily for voice-band applications, this integrated circuit provides amplifi- cation, rms detection, limiting, variable compression, and downward expansion. An integral voltage-controlled amplifier ...
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R1 = 10k 6 –IN 7 AUDIO +IN 0 10k + 1 F Figure 4. Functional Block Diagram and Typical Application bandwidth is unaffected). The GBW plots are shown in TPC 8b. The lower 3 dB cutoff ...
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SSM2166 100mV 100 Figure 5b. RMS Level Detector Performance = 22 µ F with C AVG Control Circuitry The output of the rms level detector is a signal proportional to the log of the true rms value ...
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V DE INPUT – dB Figure 8. Effect of Varying the VCA Gain Setting The gain of the VCA can be reduced below making smaller than 1 kΩ. Switching Pin 2 through 330 Ω ...
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SSM2166 (4) When using high impedance sources (≥5 kΩ), system gains in excess are not recommended. This configuration is rarely appropriate, as virtually all high impedance inputs provide larger amplitude signals that do not require as much ...
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Figure 13a. Evaluation Board Topside Silkscreen (Not to Scale) Figure 13b. Evaluation Board Topside Metallization (Not to Scale) REV. B Figure 13c. Evaluation Board Backside Metallization (Not to Scale) Signal sources are connected to the SSM2166 through a 1/8" phone ...
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SSM2166 As a result, the output dc level of the buffer will match the output dc level of the SSM2166, which is approximately 2 blocking capacitor may be inserted on Pins 6 and 7. An evaluation board ...
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STEP 5. Adjusting the Rotation Point Set the input level to 15 mV, and observe the output on the oscilloscope. Adjust R3—ROTATION PT ADJ CW until the output level just begins to drop, then reverse so that the output is ...
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... C3 +V Bypass 2.2 µF–22 µF C4 Avg. Cap 0.01 µF C5 Mute Click Suppress 10 µF C6 Coupling 10 µF C7 VCA Noise/DC Balance IC1 SSM2166P Mic Preamp IC2 OP113FP Op Amp, Output Buffer S1 SPST Mute J1 1/8" Mini Phone Plug MIC Input J2 RCA Female Output Jack –14– REV. B ...
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COPLANARITY REV. B OUTLINE DIMENSIONS 14-Lead Standard Small Outline Package [SOIC] Narrow Body (R-14) Dimensions shown in millimeters and (inches) 8.75 (0.3445) 8.55 (0.3366 6.20 (0.2441) 5.80 (0.2283 ...
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SSM2166 Revision History Location 3/03—Data Sheet changed from REV REV. B. Deleted Plastic DIP package . . . . . . . . . . . . . . . . . . . . . . . ...