Accuphase T-1100 User Manual

$$3&-34%2%/45.%2
●  Double-tuned front end easily handles high signal levels
●
 Revolutionary DDS principle for local oscillator ●Variable bandwidth
IF filter prevents interference ● Multipath reduction function ● Digital
FM detector keeps distortion and noise to a minimum ● DS-DC
achieves ideal stereo demodulation with DSP technology ●MDS plus
type D/A converter ●20-station memories also store function settings

Accuphase T-1100 Specifications

General

Type	FM/AM Tuner
Sensitivity (AM)	18μV
FM S/N Ratio (Stereo)	90 dB
S/N Ratio (AM)	55 dB
THD (AM)	0.3%
FM Stereo Separation	65 dB
FM Selectivity	80 dB
Selectivity (AM)	40 dB
Output Voltage (FM)	2.5V
Frequency Range (FM)	87.5 MHz to 108.0 MHz
Frequency Response	20 Hz - 15 kHz

Summary

Front End Design and Digital Synthesis

Double-Tuned Front End

Features a two-stage double-tuned front end and DDS local oscillator for optimal performance.

DDS (Direct Digital Synthesis) Principle

Explains the DDS principle for local oscillator, emphasizing purity and S/N ratio.

Variable Bandwidth IF Filter

Utilizes a digital FIR filter for selectable bandwidth to improve interference performance.

Ideal Digital FM Demodulation

Details the digital FM demodulator's principle for accurate phase angle extraction and audio output.

Multipath Reduction Function (MPR)

Employs DSP to suppress reflected signal components for high-quality audio.

Advanced Digital Signal Processing

DS-DC (Direct Synthesis - Double Cancellation)

Accuphase innovation for ideal stereo demodulation ensuring excellent channel separation.

Pilot Tone Direct Synthesis

Reliably extracts pilot tone using DSP for stable stereo separation even with low pilot tone levels.

Crosstalk Double Cancellation

Dual-approach circuit eliminates crosstalk for thorough left/right signal separation.

Front and Rear Panel Controls

Front Panel Overview

Identifies and explains the function of each control and indicator on the front panel.

Rear Panel Connections

Details the various input and output connectors available on the rear panel.

Versatile Array of Functions

Highlights features like memory tuning, pulse tuning, digital output, and mode selection.

Attenuator and Meter Functions

Explains the attenuator function for input level and the meter for signal status verification.

Analog Output Settings

Describes the two sets of analog outputs and the phase selector for balanced output.

T-1100 Guaranteed Specifications

General Specifications

Provides overall specifications including tuning principle, detection, and stereo demodulation.

FM Reception Performance

Lists detailed performance metrics for monophonic and stereo FM reception.

Electrical Characteristics

Details electrical properties like distortion, frequency response, and separation.

Power and Dimensions

Specifies power requirements, consumption, maximum dimensions, and weight.