Specifications

FM Tuner Section

Frequency Range (200 kHz Space)

:87.9 MHz – 107.9 MHz Usable Sensitivity

:11.2dBf (1.0 μV/75 Ω: S/N = 26dB) KDC-BT645U

:9.3dBf (0.8 μV/75 Ω: S/N = 30dB) KDC-HD545U Quieting Sensitivity

:19.2dBf (2.5 μV/75 Ω: DIN S/N = 46dB) KDC-BT645U

:15.2dBf (1.6 μV/75 Ω: S/N = 50dB) KDC-HD545U Frequency Response (±3 dB)

:30 Hz – 15 kHz

Signal to Noise Ratio (MONO)

:63 dB KDC-BT645U

:70 dB KDC-HD545U

Stereo Separation (1 kHz)

:40 dB

Digital FM Tuner Section (KDC-HD545U)

Frequency Range (200 kHz Space)

:87.9 MHz – 107.9 MHz Frequency Response (±3 dB)

:20 Hz – 20 kHz

Signal to Noise Ratio (STEREO) : 70 dB

AM Tuner Section

Frequency Range (10 kHz Space)

: 530 kHz – 1700 kHz

Usable Sensitivity (S/N = 20dB)

:31 dBμ (36 μV) KDC-BT645U

:28 dBμ (25 μV) KDC-HD545U

Digital AM Tuner Section (KDC-HD545U)

Frequency Range (10 kHz Space)

:530 kHz – 1700 kHz Frequency Response (±3 dB)

:40 Hz – 15 kHz

Signal to Noise Ratio (STEREO) : 70 dB

CD Player Section

Laser diode

: GaAlAs Digital filter (D/A)

:8 Times Over Sampling D/A Converter

:24 Bit

Spindle Speed

:500 – 200 rpm (CLV) Wow & Flutter

:Below Measurable Limit Frequency Response (±1 dB)

:20 Hz – 20 kHz

Total Harmonic Distortion (1 kHz) : 0.01 %

Signal to Noise Ratio (1 kHz)

:105 dB Dynamic Range

:93 dB

MP3 Decode

:Compliant with MPEG-1/2 Audio Layer-3 WMA Decode

:Compliant with Windows Media Audio AAC Decode

:AAC-LC ".m4a" files

USB Interface

USB Standard

:USB1.1/ 2.0 (Full Speed) File System

:FAT16/ 32

MP3 Decode

:Compliant with MPEG-1/2 Audio Layer-3 WMA Decode

:Compliant with Windows Media Audio AAC Decode

:AAC-LC “.m4a” files

Maximum Supply Current : 500 mA

42 KDC-BT645U/ KDC-HD545U