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Data Size: B6L (182 mm x 128 mm)
Book Size: B6L (182 mm x 128 mm)
Specifications
Tuner
FM Frequency Range 87.5 MHz — 108.0 MHz (50 kHz step)
Usable Sensitivity (S/N = 30 dB) 0.71 μV/75 Ω
Quieting Sensitivity
(DIN S/N = 46 dB)
2.0 μV/75 Ω
Frequency Response (±3 dB) 30 Hz — 15 kHz
Signal-to-Noise Ratio (MONO) 64 dB
Stereo Separation (1 kHz) 40 dB
MW
(AM)
Frequency Range 531 kHz — 1 611 kHz (9 kHz step)
Usable Sensitivity (S/N = 20 dB) 28.2 μV
LW
(AM)
Frequency Range 153 kHz — 279 kHz (9 kHz step)
Usable Sensitivity (S/N = 20 dB) 50.0 μV
CD player
Laser Diode GaAIAs
Digital Filter (D/A) 8 times over sampling
Spindle Speed 500 rpm — 200 rpm (CLV)
Wow & Flutter Below measurable limit
Frequency Response (±1 dB) 20 Hz — 20 kHz
Total Harmonic Distortion (1 kHz) 0.02 %
Signal-to-Noise Ratio (1 kHz) 99 dB
Dynamic Range 92 dB
Channel Separation 90 dB
MP3 Decode Compliant with MPEG-1/2 Audio Layer-3
WMA Decode Compliant with Windows Media Audio
AAC Decode AAC-LC “.aac” files
USB
USB Standard USB 1.1, USB 2.0
: High speed
: Full speed
File System FAT12/16/32
Maximum Supply Current DC 5 V
1.5 A
MP3 Decode Compliant with MPEG-1/2 Audio Layer-3
WMA Decode Compliant with Windows Media Audio
AAC Decode AAC-LC “.aac”, “.m4a” files
WAV Decode Linear-PCM
FLAC Decode FLAC file (Up to 96 kHz/24 bit)
Auxiliary
Frequency Response (±3 dB) 20 Hz — 20 kHz
Input Maximum Voltage 1 000 mV
Input Impedance 30 kΩ
Bluetooth
Version Bluetooth 4.2
Frequency Range 2.402 GHz — 2.480 GHz
RF Output Power (E.I.R.P.) +4 dBm (MAX), Power Class 2
Maximum Communication Range Line of sight approx. 10 m (32.8 ft)
Profile HFP 1.7.1 (Hands-Free Profile)
A2DP (Advanced Audio Distribution Profile)
AVRCP 1.6.1 (Audio/Video Remote Control Profile)
PBAP (Phonebook Access Profile)
SPP (Serial Port Profile)
JS_KWD_KDC_BT640U_EN_EN.indd 37JS_KWD_KDC_BT640U_EN_EN.indd 37 6/7/2019 1:33:32 PM6/7/2019 1:33:32 PM
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