
Operating Conditions
at Pins 22, 45 = GND
Parameter
Symbol
V
CC
V
CC
op
Conditions
Ratings
Unit
V
V
Recommended supply voltage
Operating supply voltage
5
3.6 to 5.5
Operating Characteristics
at Ta = 25 °C, Pins 22, 45 = GND, V
CC
(pins 56, 64) = 5 V
Parameter
Symbol
I
CCO
Vref
Conditions
min
typ
max
Unit
mA
V
Current drain
Reference voltage
[Interface]
CE-Vth
CL-Vth
DAT-Vth
Maximum CL frequency
[RF amplifier]
RFSM no signal voltage
V
CC
1 (pin 64) + V
CC
2 (pin 56)
VR
22
2.3
32
2.5
42
2.7
CEvth
CLvth
DATvth
CLmax
CE
CL
DAT
0.8
0.8
0.8
V
V
V
500
kHz
RFSMo
1.35
1.60
1.85
V
Minimum gain
RFSM
G
min
FIN1, FIN2 : 1 M
-input, PH1 = 4 V
freq = 200 kHz, RFSM
–14.0
–12.5
–11.0
dB
[Focus amplifier]
FDO gain
FDO offset
Off time offset
Offset adjustment step
F search voltage H
F search voltage L
[Tracking amplifier]
TE gain MAX
TE gain MIN
TE3 dB
TO gain
TGL offset
TGH offset
THLD offset
Off 1 offset
Off 2 offset
Offset adjustment step
Balance range H
Balance range L
TOFF-VTH
TGL-VTH
[PH]
No signal voltage
[BH]
No signal voltage
[DRF]
Detection voltage
Output voltage H
Output voltage L
[FZD]
Detection voltage 1
Detection voltage 2
FD
G
FDost
FDofost
FDstep
FSmax
FSmin
FIN2 : 1 M
-input, FDO
Difference from reference voltage, servo on
Difference from reference voltage, servo off
FDO
FDO
FDO
3.5
5.0
6.5
dB
mV
mV
V
V
V
–170
–40
0
0
+170
+40
50
0.8
–0.8
TE
G
max
TE
G
min
TEfc
TO
G
TGLost
TGHost
THLDost
OFF1ost
OFF2ost
TOstep
BAL-H
BAL-L
TOFFvth
TGLvth
f = 10 kHz, E: 1 M
-input, PH1 = 4 V
f = 10 kHz, E: 1 M
-input, PH1 = 1 V
E: 1 M
-input
TH
→
TO gain, THLD mode
Servo on, TGL = H, TO
TGL = L, difference from TGL offset, TO
THLD mode, difference from TGL offset, TO
TOFF = H
TOF2 off (IF)
TO
gain E/F input, TB = 5 V
gain E/F input, TB = 0 V
5.0
–0.5
6.5
+1.8
60
6.0
8.0
+4.0
dB
dB
kHz
dB
mV
mV
mV
mV
mV
mV
dB
dB
V
V
4.0
8.0
–250
–50
–50
–50
–50
0
0
0
0
0
+250
+50
+50
+50
+50
60
3.5
–3.5
2.5
2.5
1.0
1.0
3.0
3.0
PHo
Difference from RFSM
–0.85
–0.65
–0.45
V
BHo
Difference from RFSM
0.45
0.65
0.85
V
DRFvth
DRF-H
DRF-L
Difference from VR at RFSM
–0.60
4.5
–0.35
4.9
–0.20
V
V
V
0
+0.5
FZD1
FZD2
FE, difference from VR
FE, difference from VR
0
+0.2
V
V
0
Continued on next page.
LA9230M/9231M
No.5189 - 2/20