AN8847SB Datasheet, PDF (5/7 Pages) Panasonic Semiconductor – Head amplifier IC for CD-ROM drive for 32 times speed or more

ICs for Compact Disc/CD-ROM Player
AN8847SB
s Electrical Characteristics at T_a = 25°C (continude)
Parameter
Symbol
Conditions
Min Typ Max Unit
Tracking error amp. (continued)
Tracking error amp.
balance relative output 2−H
Tracking error amp.
balance relative output 2−L
Tracking error amp.
frequency characteristics
B_TRH
B_TRL
G_TRF
V_CC1 = 5 V, V_CC2 = 3.3 V
V_TB = V_REF2 +0.5 V
V_CC1 = 5 V, V_CC2 = 3.3 V
V_TB = V_REF2 − 0.5 V
V_CC1 = 5 V, V_CC2 = 3.3 V
f = 30 kHz, 500 kHz
−8.35 −6.35 −4.35 dB
4.35 6.35 8.35 dB
−4.5  0
dB
Tracking error amp.
GCTRL gain ratio × 4
RF addition amp.
B_TR4
V_CC1 = 5 V, V_CC2 = 3.3 V
V_GC = V_REF2
3.3 4.3 5.3 
RF addition amp.
output offset voltage
V_RAOF V_CC1 = 5 V, V_CC2 = 3.3 V
−200 0 200 mV
RF addition amp. addition gain
RF addition amp.
addition relative gain 1
G_RAD V_CC1 = 5 V, V_CC2 = 3.3 V
∆G_RAD1 V_CC1 = 5 V, V_CC2 = 3.3 V
−1.5 0 1.5 dB
−1.0 0 1.0 dB
RF addition amp.
addition relative gain 2
∆G_RAD2 V_CC1 = 5 V, V_CC2 = 3.3 V
−1.0 0 1.0 dB
RF addition amp.
addition relative gain 3
∆G_RAD3 V_CC1 = 5 V, V_CC2 = 3.3 V
−1.0 0 1.0 dB
RF addition amp.
full-addition gain
G_RADA V_CC1 = 5 V, V_CC2 = 3.3 V
10.5 12.0 13.5 dB
RF addition amp. full-addition G_RADDF V_CC1 = 5 V, V_CC2 = 3.3 V
frequency characteristics ^*
f = 500 kHz, 40 MHz
−2.88 0.12 3.12 dB
Variable EQ characteristics
EQ characteristics × 1−1 ^*
EQ characteristics × 1−3 ^*
EQ characteristics × 32−1 ^*
EQ characteristics × 32−3 ^*
AGC
G_EQ1−1 f = 10 kHz, 100 kHz
V_EQCTL = V_REF2 − 0.75 V
G_EQ1−3 f = 1.4 MHz
V_EQCTL = V_REF2 − 0.75 V
G_EQ32−1 f = 2 MHz
V_EQCTL = V_REF2 +0.75 V
G_EQ32−3 f = 32 MHz
V_EQCTL = V_REF2 +0.75 V
−1.5 0 1.5 dB
2.5 4.0 5.5 dB
−1.5 0 1.5 dB
0.5 2.0 3.5 dB
AGC max. gain
AGC operating gain
AGC compression factor
G_MAGC
G_AGC
∆G_AGC
f = 500 kHz, V_IN = 20 mV[p-p]
f = 500 kHz, V_IN = 500 mV[p-p]
f = 500 kHz, V_IN = 100 mV[p-p]
20.0 23.0 26.0 dB
3.0 6.0 9.0 dB
−1.97 0.53 3.03 dB
Note) _*: The values mentioned above are subject to change according to the state of a printed circuit board, a socket, etc.
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