Philips CEM5000/00, Service Manual

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TDA7419
A
MAX
Max Attenuation -83 -79 -75 dB
A
STEP
Step Resolution 0.5 1 1.5 dB
A
MUTE
Mute Attenuation 80 90 dB
E
E
Attenuation Set Error 2 dB
V
DC
DC Steps Adjacent Attenuation Steps 0.1 5 mV
AUDIO OUTPUTS
V
CL
Clipping level d = 0.3% 2 V
RMS
R
OUT
Output impedance 30 100
Ω
R
L
Output Load Resistance 2 k
Ω
C
L
Output Load Capacitor 10 nF
V
DC
DC Voltage Level 3.8 4.0 4.2 V
SUBWOOFER ATTENUATOR
G
MAX
Max Gain 14 15 16 dB
A
MAX
Max Attenuation -83 -79 -75 dB
A
STEP
Step Resolution 0.5 1 1.5 dB
A
MUTE
Mute Attenuation 80 90 dB
E
E
Attenuation Set Error 2 dB
V
DC
DC Steps Adjacent Attenuation Steps 1 5 mV
SUBWOOFER LOWPASS
f
LP
Lowpass Corner Frequency f
LP1
72 80 88 Hz
f
LP2
108 120 132 Hz
f
LP3
144 160 176 Hz
HPF EFFECT
G
MAX
Max Gain 22 dB
G
MIN
Min Gain 4 dB
A
STEP
Step Resolution 2 dB
SPECTRUM ANALYZER CONTROL
V
SAOut
Output Voltage Range 0 3.3 V
f
C1
Center Frequency Band 1 62 Hz
f
C2
Center Frequency Band 2 157 Hz
f
C3
Center Frequency Band 3 392 Hz
f
C4
Center Frequency Band 4 1 kHz
f
C5
Center Frequency Band 5 2.51 kHz
f
C6
Center Frequency Band 6 6.34 kHz
f
C7
Center Frequency Band 7 16 kHz
Q Quality Factor Q1 1.8
Q2 3.5
f
SAClk
Clock Frequency 1 100 kHz
t
Sadel
Analog Output Delay Time 2
µ
s
t
repeat
Spectrum Analyzer Repeat Time 50 ms
t
intres
Internal Reset Time 4.5 ms
Table 6. Electrical Characteristcs (continued)
V
S
= 8.5V; T
amb
= 25°C; R
L
= 10k
Ω
; all gains = 0dB; f = 1kHz; unless otherwise specified
Symbol Parameter Test Condition Min. Typ. Max. Unit