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SD MP3 ELECTRICAL PERFORMANCE
Model ：RecordR
Test Item
Playing
Support playing format
SD capacity
Sample rate
Reading time
Playing
freq response
S/N (with A Filter）
THD of playing
Power consumption
Battery 6V
Output power
Record and playing
RC/P gain difference
R/P THD
S/N
Power consumption
Battery 6V
Rewind and playing
RW/P gain difference
RW/P THD
S/N
Power consumption
Battery 6V
Supply Voltage:
*Adaptor 100-240V 50Hz 7.5V/0.8A
*Battery 6V
Remark：
Specification
Brand：ROBERTS Temp：25∘C R.H.：75% Date：2011/10/11 Ver：A
Condition
Input
MP3/WMA
16MB~8GB
16k/32/64/128/192k bps
8GB
Test 1 kHz MP3128kbps 0dB
OUT=R.O=0dB
1 kHz MP3 0dB 128kbps R.O
MP3 1kHz 128kbps 0dB R.O
playing SD only(1K) R.O
1 kHz MP3 0dB 128kbps 10%T. H.D.
Record FM DEV 22.5kHz/ 400Hz R.O
measure playing output level
Record FM DEV 75kHz/ 1KHz R.O
Record FM DEV 22.5kHz/ 1KHz R.O
recording+FM R.O
Rewind FM DEV 22.5kHz/ 400Hz R.O
measure playing output level
Record FM DEV 75kHz/ 1KHz R.O
Record FM DEV 22.5kHz/ 1KHz R.O
rewinding+FM R.O
R.O.: 50mW
Output
freq
100Hz
10K
Load: 8Ohm
Approved by
4
Value
Test no.
Nom.
Lim
1.
2.
<10
7
+-2
2
+-2
56
0.5
1
200
1
0.8
-3
+-3
1
3
50
250
0
+-3
1
3
50
250
Modulation: TONE set at 0
Released/Tested by
陳盧生
Page： 3/4
Unit
3.
Sec
dB
dB
dB
%
Vrms
mA
W
dB
%
dB
mA
dB
%
dB
mA
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