Integrated Circuit - SSI2164, Quad VCA, Sound Semiconductor

Integrated Circuit - SSI2164, Quad VCA, Sound Semiconductor

Sound Semiconductor
Integrated Circuit - SSI2164, Quad VCA, Sound Semiconductor image 1
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The FatKeys™ SSI2164 is perhaps the most flexible VCA available, with four independent channels for lowest cost-per-VCA. The user-selectable mode control allows Class A, AB, or intermediate biasing, and current inputs and outputs provide great design freedom. Ideal for voltage-controlled filters.

The SSI2164 is a versatile VCA building block for high-performance audio applications. Four independent channels provide voltage control of current-mode inputs and outputs for a gain range from +20dB to –100dB, with control provided by a ground-referenced –33mV/dB constant. The SSI2164 will directly retrofit existing SSM/V2164 positions while offering improvements that include significantly lower overall distortion, on-chip protection against asymmetrical power failure, and a substantial increase of input current handling.

The device offers considerable flexibility for a wide range of design goals and applications. A unique mode control allows selection of Class A, Class AB, or in-between using a single resistor. In addition, improved current handling allows use of considerably lower value input resistors for reduced output noise without loss of headroom. Two or more channels can be parallel-connected for further noise improvement. Finally, SSI2164 VCA channels can be used as high-quality OTA building blocks for a variety of applications such as voltage controlled filters, exponential generators, and antilog converters.

The SSI2164 will operate on supplies as low as +8V for battery-powered devices such as guitar pedals, or up to ±18V in systems where maximum headroom is desired. For the single version, see P-Q-SSI2161. For the dual version, see P-Q-SSI2162.

Features:

  • Improved Direct Replacement for SSM2164/V2164
  • Input Current Handling Increased 2x to 1mA
  • Pin-Selectable Class A or AB Operation
  • 118dB Dynamic Range (Class AB)
  • Low Distortion – Typical 0.025% (Class A)
  • Large Gain Range: -100dB to +20dB
  • ±4V to ±18V Operation
  • No External Trimming
  • Low Control Feedthrough – Typical -60dB
SKU:
P-Q-SSI2164
Item ID:
044451
UPC/EAN:
841358114908
Sound Semiconductor Part Number:
SSI2164
Brand:
Sound Semiconductor
Package:
Sections:
Channel Separation (CF = 10pF)-110 dB
Class AB Output Noise (RIN/OUT = 7.5kΩ)-101dBu
Class AB Output Noise (RIN/OUT = 15kΩ)-98 dBu
Class AB Output Noise (RIN/OUT = 20kΩ)-96 dBu
Class AB Output Noise (RIN/OUT = 30kΩ)-93 dBu
Class AB Total Harmonic Distortion (AV = +20dB)0.20 %
Class AB Total Harmonic Distortion (AV = -20dB)0.045 %
Class AB Total Harmonic Distortion (AV = 0dB)0.05 %
Class AB Total Harmonic Distortion (AV = 0dB, VIN = –17dBu)0.025 %
Class A Output Noise (RIN/OUT = 7.5kΩ)-92.5 dBu
Class A Output Noise (RIN/OUT = 15kΩ)-87 dBu
Class A Output Noise (RIN/OUT = 20kΩ)-84 dBu
Class A Output Noise (RIN/OUT = 30kΩ)-81 dBu
Class A Total Harmonic Distortion (AV = +20dB)0.17 %
Class A Total Harmonic Distortion (AV = -20dB)0.025 %
Class A Total Harmonic Distortion (AV = 0dB)0.025 %
Class A Total Harmonic Distortion (AV = 0dB, VIN = –5dBu)0.015 %
Control Pin Max. Voltage (Pin 4)V- to V+
Control Port - Channel-to-Channel Gain Matching (AV = -40dB)0.24 dB
Control Port - Channel-to-Channel Gain Matching (AV = 0dB)0.07 dB
Control Port - Control Feedthrough (AV = 0dB to –40dB)-60 dB
Control Port - Gain Accuracy (AV = +20dB)±0.55 dB
Control Port - Gain Accuracy (AV = -20dB)±0.55 dB
Control Port - Gain Accuracy (AV = 0dB)±0.30 dB
Control Port - Gain Constant (After 60 seconds of operation)-33 mV/dB
Control Port - Gain Constant Temp. Coefficient-3300 ppm/°C
Control Port - Max. Input Impedance11 kΩ
Control Port - Maximum Attenuation-100 dB
Control Port - Maximum Gain+20 dB
Control Port - Min. Input Impedance9 kΩ
Control Port - Typ. Input Impedance10 kΩ
Headroom (1% THD)+22 dBu
Max. Lead Temperature (Soldering, 10 sec)260°C
Max. Mode Current (IM; Pin 1 to Pin 10 via RM)2.0 mA
Max. Operating Temperature Range-40°C to +85°C
Max. Storage Temperature Range-65°C to +150°C
Max. Supply Current (Class AB, VC = GND)±8 mA
Max. Supply Voltage±20 V
Max. Supply Voltage Range±18 V
Min. Supply Voltage Range±4 V
Power Supply Rejection Ratio (60Hz)90 dB
Signal Input - Input Bias Current±10 Na
Signal Input - Input Current Handling1 mAP
Signal Output - Output Compliance±100 mV
Signal Output - Output Offset Current (VIN = GND)±150 nA
Slew Rate700 µA/µs
Supply Current (Class A, VC = GND, IM = 1mA)±8.4 mA
Typ. Supply Current (Class AB, VC = GND)±6 mA
Unity Gain Bandwidth (CF = 10pF)500 kHz
Packaging Information
Packaging Dimensions0.395 in. × 0.243 in. × 0.055 in.
Weight (Packaging)0.0018 lbs.
PDF: DatasheetAll Models
PDF: Package DimensionsAll Models

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PDF: Datasheet Datasheet2.16 MB
PDF: Package Dimensions Package Dimensions69.94 KB
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