Harman Kardon HD 755, Техническое руководство

Страница: 24 / 65

AN8849SB
■
Electrical Characteristics at T
a
=
25
°
C
Parameter Symbol Conditions Min Typ Max Unit
Current consumption with no load 1 I
TOTAL1
V
CC1
=
5 V, V
CC2
=
3.3 V 28.4 40.6 52.8 mA
V
EQSW
=
V
REF2
+
0.75 V
Current consumption with no load 2 I
TOTAL2
V
CC1
=
5 V, V
CC2
=
3.3 V 1.20 1.72 2.24 mA
V
REF1
output voltage V
REF1
V
CC1
=
5 V, V
CC2
=
3.3 V 2.27 2.50 2.73 V
V
REF2
output voltage V
REF2
V
CC1
=
5 V, V
CC2
=
3.3 V 1.50 1.65 1.80 V
Focus error amp.
Focus error amp. V
FO
−
OF
V
CC1
=
5 V, V
CC2
=
3.3 V
−
90 0 90 mV
output offset voltage
Focus error offset balance V
FO
−
OFB
V
CC1
=
5 V, V
CC2
=
3.3 V
−
150 0 150 mV
crosstalk amount V
FB
=
V
REF2
±
0.5 V
Focus error amp. G
FO
V
CC1
=
5 V, V
CC2
=
3.3 V 12.3 14.4 16.5 dB
V-V conversion gain V
GC
=
V
REF2
−
0.75 V
Focus error amp.
∆
G
FO
V
CC1
=
5 V, V
CC2
=
3.3 V
−
1.5 0 1.5 dB
V-V conversion relative gain V
GC
=
V
REF2
−
0.75 V
Focus error amp. B
FO1
−
H
V
CC1
=
5 V, V
CC2
=
3.3 V 1.08 1.35 1.62

balance output 1
−
H V
FB
=
V
REF2
+
0.5 V
Focus error amp. B
FO1
−
L
V
CC1
=
5 V, V
CC2
=
3.3 V 0.45 0.65 0.85

balance output 1
−
L V
FB
=
V
REF2
−
0.5 V
Focus error amp. B
FOH
V
CC1
=
5 V, V
CC2
=
3.3 V 4.35 6.35 8.35 dB
balance relative output 2
−
H V
FB
=
V
REF2
+
0.5 V
Focus error amp. B
FOL
V
CC1
=
5 V, V
CC2
=
3.3 V
−
8.35
−
6.35
−
4.35 dB
balance relative output 2
−
L V
FB
=
V
REF2
−
0.5 V
Focus error amp. G
FOF
V
CC1
=
5 V, V
CC2
=
3.3 V
−
4.5
−
3.0
−
1.5 dB
frequency characteristics f
=
3 kHz, 60 kHz
Focus error amp. B
FO4
V
CC1
=
5 V, V
CC2
=
3.3 V 3.3 4.3 5.3

GCTRL gain ratio
×
4 V
GC
=
V
REF2
Tracking error amp.
Tracking error amp. V
TR
−
OF
V
CC1
=
5 V, V
CC2
=
3.3 V
−
60 0 60 mV
output offset voltage
Tracking error offset balance V
TR
−
OFB
V
CC1
=
5 V, V
CC2
=
3.3 V
−
200 0 200 mV
crosstalk amount V
TB
=
V
REF2
±
0.5 V
Tracking error amp. G
TR
V
CC1
=
5 V, V
CC2
=
3.3 V 12.2 14.3 16.4 dB
V
−
V conversion gain V
GC
=
V
REF2
−
0.75 V
Tracking error amp.
∆
G
TR
V
CC1
=
5 V, V
CC2
=
3.3 V
−
1.5 0 1.5 dB
V
−
V conversion relative gain V
GC
=
V
REF2
−
0.75 V
Tracking error amp. B
TR1
−
H
V
CC1
=
5 V, V
CC2
=
3.3 V 0.45 0.65 0.85

balance output 1
−
H V
TB
=
V
REF2
+
0.5 V
Tracking error amp. B
TR1
−
L
V
CC1
=
5 V, V
CC2
=
3.3 V 1.08 1.35 1.62

balance output 1
−
L V
TB
=
V
REF2
−
0.5 V
HD755
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