Philips CEM2000/00, Service Manual

Page: 36 / 72

PT7313E
V1.0 12 February 2010
ELECTRICAL CHARACTERISTICS
Unless otherwise specified: Ta=25
℃
, VDD=9V, RL=100K
Ω
, Rg=20
Ω
, all controls flat, F=1KHz, and all of peripheral
components according to standard application circuit.
Parameter Symbol Test Condition Min. Typ. Max. Unit
Power Supply
Supply voltage VDD - 5 9 10 V
Supply current Is
VDD=9V - 30 40
mA
VDD=5V - 25 32
Input Selectors
Input resistance R
IN
Input 1, 2, 3 35 50 70 K Ω
Max. input level V
imax
All Gain=0dB; THD=1% 2.3 2.6 - Vrms
Input separation IS
IN
F=20 ~ 20KHz 90 100 - dB
Min. input gain G
INmin
- -1 0 1 dB
Max. input gain G
INmax
- 10.5 11.25 12 dB
Step resolution G
INst
- - 3.75 - dB
Gain set error E
A
- -1 0 1 dB
Minimum load RL Vo=2Vrms, LOUT, ROUT 5 - - K Ω
DC offset V
DCO
0dB to +11.25dB - 3 10 mV
Volume Control
Input resistance R
IN
VOL=0dB 13 20 27 K Ω
Min. attenuation A
VMIN
- -1 0 1 dB
Max. attenuation A
VMAX
- -75 -78.75 -82 dB
Step resolution A
STEP
- 1.15 1.25 1.3 dB
Attenuation set error E
A
VOL=0 ~ -70dB -1 0 1 dB
Speaker Attenuators
Max. Gain A
VMIN
- -1 0 +1 dB
Max. attenuation A
VMAX
- -36 -37.5 -39 dB
Step resolution S
STEP
- 1.15 1.25 1.35 dB
Attenuation set error E
A
- -1 0 1 dB
Output mute attenuation A
MUTE
- - 100 - dB
DC offset V
DCO
0dB to MUTE - 5 10 mV
Bass Control
Control range Gb Max. Boost/Cut ±12 ±14 ±16 dB
Step resolution B
STEP
- 1.7 2 2.3 dB
Feedback resistance R
B
- 34 44 58 K Ω
Treble Control
Control range Gt Max. Boost/Cut ±12 ±14 ±16 dB
Step resolution T
STEP
- 1.7 2 2.3 dB
Loudness Control
Boost gain G
LD
Volume=-40dB, F=20Hz 18 20 22 dB
Audio Outputs
Max. output level V
OMAX
THD=1% 2.3 2.6 - Vrms
DC voltage level V
OUT
- 0.49 0.5 0.51 VDD
Minimum load RL - 5 - - K Ω
General
Signal to noise ratio SNR
All Gain=0dB, A-weighted - 100 -
dBV
All Gains=0dB, Muted - 100 -
Distortion THD
All Gain=0, Vin=1Vrms - 0.03 0.07
%
All Gain=0, Vin=100Vrms - 0.01 0.03
Channel separation Cs L to R or R to L channel 90 100 - dB
I
2
C crosstalk Ct I
2
C to audio output - 90 - dB
Ripple rejection PSRR CREF=22µF, F=100Hz - 75 - dB
I
2
C Bus
Input low voltage V
IL
VDD=9V - - 1 V
Input high voltage V
IH
VDD=9V 3 - - V
Input current I
IN
- -5 - +5 µA
SDA pull down voltage Vack Rpull up=3K, ACK=active - 0.4 - V
P rinceton Technology Corp
.
ANGUS ELECTRONICS CO., LTD
Tel: (852) 2345 0540 Fax: (852) 2345 9948 Web Site: www.angus.com.hk