ASG100 • ASG140

Audio Test Generators
Die Produkte in diesem Datenblatt werden nicht mehr von Tektronix verkauft.

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Features & Benefits

Common Features
  • 20 Hz to 20 kHz
  • 24 dBu to -90 dBu
  • 4 Second Voice ID
  • Balanced XLR Signal Paths
Controls
  • RS-232 Remote Control
  • Front Panel Lockout
  • Contact Closure
Special Measurement Signals
  • Multitone Test Signals
  • Audio/Video Delay Signals
  • CCITT 0.33 Signals
  • Tektronix Autosequences
ASG140 Features
  • Four Balanced XLR Signals
  • Fixed 10 Ohm Output Impedance
ASG100 Features
  • Balanced, Loopthrough Operation
  • Programmable Output Impedance

Applications

ASG100
  • In-line Audio Transmission Link Testing
ASG140
  • Equipment Maintenance for Component VTRs

Tektronix audio generators offer potent solutions for audio testing. The two-channel ASG100 and four-channel ASG140 combine compact size, ease-of-use and programmability. Operated manually or automatically, they produce signals used for aligning, servicing and testing of audio facilities.

Test signal capability starts with simple line up, polarity and level signals. Added to these are tone sweeps for checking distortion, frequency response and crosstalk. CCITT 0.33 signals and Multitone signals support advanced audio analysis capability found in the VM700T. Digital synthesis of signals ensures signal stability and repeatability.

The ASG100/140 are operated by simple front-panel controls. Alternately, users may operate these generators via their rear-panel RS-232 remote control port. Supporting a variety of baud rates, this interface permits seamless integration of audio signal generators in ATE test schemes. A wide variety of editing schemes permits user-defined values to be stored for later reuse.

ASG100 Applications

The two-channel ASG100 is for situations where the generator is inserted in-line with the audio path of interest. When used in this fashion, the ASG100 can insert a variety of test signals into the audio program. The output impedance is programmable, allowing it to be used with either power-matched or voltage-driven signal distribution schemes.

ASG140 Applications

The ASG140 is designed for situations requiring no in-line connections. Its four audio outputs are grouped in two stereo pairs making it the ideal choice for service and alignment of MII, Betacam, D1, D2 and D3 VTRs. Its audio output features 10 Ohm output impedance.

Characteristics

Frequency Range - 10 Hz to 20 kHz.

Frequency Resolution - ±1 Hz.

Frequency Accuracy - ±0.1%.

Amplitude Range -

90 dBu to 24 dBu.

Balanced into 600 @ Rs = 10 Ω (6 dB lower @ Rs = 600 Ω).

Amplitude Resolution - ±0.1 dBu.

Amplitude Accuracy -

±0.2 dB @ 1 kHz.

24 dBu to -80 dBu.

Amplitude Flatness -

±0.05, -0.2 dB 10 Hz to 20 kHz (relative to 1 kHz).

Typical: ±0.05, -0.1 dB 10 Hz to 15 kHz.

Channel Matching -

Level: ±0.2 dB, ±0.1 dB typ. from 10 Hz to 19 kHz.

Phase: ±1 degree, 10 Hz to 20 kHz.

THD+N -

V0 >-10 dBu, 0.015%: 20 Hz to 19 kHz, 80 kHz bandwidth.

V0 >-10 dBu, 0.056%: 19 kHz to 20 kHz, 80 kHz bandwidth.

Signal-to-Noise Ratio - 90 dB @ 0 dBu, 22 kHz bandwidth.

Crosstalk -

L(R) Input to R(L) Output: 110 dB, Offline, Rs = 50 Ω, R0 = infinity 120 dB, Offline, Rs = 50 Ω, R0 = 600 Ω.

L(R) Channel to R(L) Channel: -90 dB, Online, Rs = 10 Ω, R0 = infinity -90 dB @ 20 kHz.

Online, Rs = 10 Ω, R0 = 600 Ω.

Input Signals - Balanced XLR, female.

Input Impedance - 0.002 µF cap load.

Output Signals - Balanced XLR, male.

Output Impedance - 10 Ω, 600 Ω or user-defined.

Power Supply

Input Range - 90 to 240 V AC.

Consumption - 20 W typical.

RS-232 Interface

Data Bits - 8.

Parity - None.

Stop Bits - 1.

Baud Rate - 1200, 2400, 4800, 9600.

Certifications

EMC - Certified to the EMC Directive 89/336/EEC.

Safety -

Approved to: UL1244, CSA231.

Complies with: EN61010-1, IEC61010-1.

ASG140 Characteristics

Frequency Range - 10 Hz to 20 kHz.

Frequency Resolution - ±1 Hz.

Frequency Accuracy - ±0.1 dBu.

Amplitude Range - -90 dBu to 24 dBu. Balanced into 600 Ω.

Amplitude Resolution - ±0.1 dBu.

Amplitude Accuracy - ±0.2 dB @ 1 kHz, 24 dBu to -80 dBu.

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Amplitude Flatness -

±0.05, -0.2 dB 10 Hz to 20 kHz (relative to 1 kHz).

Typical: ±0.05, -0.1 dB 10 Hz to 15 kHz.

Channel Matching -

Level: ±0.2 dB, ±0.1 dB typ from 10 Hz to 19 kHz.

Phase: ±1 degree, 10 Hz to 20 kHz.

THD+N -

VO >-10 dBu, 0.015%: 20 Hz to 19 kHz, 80 kHz bandwidth.

VO >-10 dBu, 0.056%: 19 kHz to 20 kHz, 80 kHz bandwidth.

Signal-to-Noise Ratio - 90 dB @ 0 dBu, 22 kHz bandwidth.

Crosstalk -

L(R) output to R(L) output: -90 dB, Signal on, RL=00 Ω.

-90 dB @ 20 kHz, Signal on RL= 600 Ω.

Input Signals - Not applicable.

Input Impedance - Not applicable.

Output Signals - Balanced XLR, male.

Output Impedance - 10 Ω.

Power Supply

Input Range - 90 to 240 V AC.

Consumption - 20 W typical.

RS-232 Interface

Data Bits - 8.

Parity - None.

Stop Bits - 1.

Baud Rate - 1200, 2400, 4800, 9600.

Environmental

Temperature -

Operating: 0 °C to +50 °C

Nonoperating: -40 °C to +65 °C.

Certifications

EMC - Certified to the EMC Directive 89/336/EEC.

Safety - Approved to: UL1244, CAN/CSA-C22.2 No.231.

Complies with: EN 61010-1, IEC 61010-1.

Physical Characteristics

Dimensions

mm

in.

Weight

kg

lb.

Height

43

1.7

Width

206

8.1

Depth

458

18

Net

1.48

3.25

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