Philips CEM2100/00, Service Manual

Page: 416 / 430

TC94B14MFG
2010-01-12 16
Characteristics Symbol
Test
Circuit
Test Condition Min Typ. Max Unit
TE section (TPi (TNi)
→
TEi)
G
VA11TE
TEOGAINi
=
0000
⎯
7.5
⎯
Voltage gain & variable
range 1
(CD-DA mode)
G
VA12TE
f
=
1 kHz, TEBC
=
00h, CMD: GVSW
=
1 TEOGAINi
=
1111
⎯
32
⎯
G
VA21TE
TEOGAINi
=
0000
⎯ 19.5 ⎯
Voltage gain & variable
range 2
(CD-RW mode)
G
VA22TE
⎯
f
=
1 kHz, TEBC
=
00h, CMD: GVSW
=
0
TEOGAINi
=
1111
⎯ 44 --
dB
H (DA) Δ R
T1TE
TEBC
=
7Fh, GVSW=1
+
50
+
60 Gain balance
adjustment
width
L (DA)
Δ R
T2TE
⎯
TEBC
=
80h, GVSW=1
⎯ −
60
−
50
%
Gain balance 1
(CD-DA mode)
GB
1TE
Δ
G
VA1
*
TE
−
1 0
+
1
Gain balance 2
(CD-RW mode)
GB
2TE
⎯
Δ
G
VA2
*
TE
−
1
0 +
1
dB
Frequency
characteristic 1
(CD-DA mode)
f
C1TE
−
3dB point,
CMD: GVSW
=
1
⎯
33
⎯
Frequency
characteristic 2
(CD-RW mode)
f
C2TE
⎯
−
3dB point,
CMD: GVSW
=
0
⎯
33
⎯
kHz
Output offset voltage 1
(CD-DA mode)
(Note 6)
V
OF1TE
VRO reference, TPI/TNI open,
TEBC
=
00h CMD: GVSW
=
1
−
50
⎯ +
50
Output offset voltage 2
(CD-RW mode)
(Note 6)
V
OF2TE
⎯
VRO reference, TPI/TNI open,
TEBC
=
00h CMD: GVSW
=
0
−
50
⎯ +
50
mV
Output upper-limit
voltage
V
OHTE
GND reference 2.9 3.1
⎯
Output lower-limit
voltage
V
OLTE
⎯
GND reference
⎯
0.3 0.5
V
Permissible load
resistance
R
LMTE
⎯ ⎯
10 15
⎯
k
Ω
Note 6: These values are those for which offset correction is completed.