SAMSUNG S1L9251X

CD-ROM 48X RF AMP
S1L9251X
INTRODUCTION
CD-ROM 48X RF AMP Chip is RF pre signal processor and processes signals from optical pick-up. This chip
processes main signal through summing amp, AGC block, EQ block, and generates SERVO error signals for
SERVO control. It can playback CD-ROM and CD-RW disc.
MAIN FEATURES (FEATURES, CHARACTERISTICS)
•
CD-ROM 48X
— 1, 4, 8: CLV mode
— Maximum Speed of 48X: CAV mode
•
Support CD-R/RW disc
•
RF Amp & Equalizer
•
Focus Error Amp
•
Tracking Error Amp (3-Beam)
•
Mirror (RFCT, RFRP) Signal Detection
•
Defect Signal Detection
•
Built-in AGC Function
•
ALPC (Automatic Laser Power Control) Block
•
Built-in RF Envelop Detector
•
SBAD Signal Generation
•
Signal Generation for Center Position Servo
•
Built-in Serial Interface Port
•
Power Down Mode
1
S1L9251X
CD-ROM 48X RF AMP
BLOCK DIAGRAM
Internal Block Diagram
LDO
1
PD
2
CM4
CM8
44
43
RFO
LPFADJ
PLLF
41
40
42
CLPF
39
CAGC
AGCIN
38
37
36
LPF
+
Vbg
RFEQO
CP_ENV
RFRPI
35
34
33
RFRP
32
CP2
31
CB2
30
RFCT
29
CDFCT
28
CC2
27
CC1
26
DFCT
25
VDD
24
RFEN
23
RFDATA
AGC
VCC
SUM
3
+
-
+
-
+
A
4
DVCC
Peak
B
+
-
5
offset
Peak
+
C
+
-
DVC
Bottom
6
+
Peak
+
-
Bottom
7
VCC
8
+
-
D
+
-
+
E
10
F
11
+
+
-
9
+
+
+
12
GND
2
-
+
-
+
VR
DVCC
Peak
13
14
DVCC
DVC
15
FE
SERIAL
I/F
+
16
17
18
19
20
21
22
SBAD
TE
VSS
CSERC
CSERVO
SEROUT
RFCLK
CD-ROM 48X RF AMP
S1L9251X
External Application
RF Output
VR
44
43
42
41
40
39
38
37
36
35
34
CM8
RFO
LPFADJ
PLLF
CLPF
CAGC
AGCIN
RFEQO
CP_ENV
RFRPI
VCC
CM4
DSP
1
LDO
RFRP 33
RFRP Output
2
PD
CP2
32
VR
3
SUM
CB2
31
VR
4
A
RFCT 30
5
B
CDFCT 29
6
C
CC2
28
7
D
CC1
27
8
VCC
9
VR
LD
PD
SUM
A
B
RFCT Output
C
D
E
F
DFCT 26
VDD
VSS
CSERC
CSERVO
SEROUT
RFCLK
F
TE
11
25
RFEN 24
SBAD
E
FE
10
DVC
2.5V Analog Voltage
Output
DVCC
VCC
GND
LASER PICK UP
12
13
14
15
16
17
18
19
20
21
22
GND
DFCT Output
VDD
Enable Signal Input
RFDATA 23
Serial Data Input
DVCC
TE Output
1.65V
SBAD Output
Clock Input
Center Servo
Output
FE Output
3
S1L9251X
CD-ROM 48X RF AMP
PIN DESCRIPTION
No
4
Name
I/O
Description
Related Block
1
LDO
O
Output of ALPC block
ALPC
2
PD
I
Input for ALPC block
ALPC
3
SUM
I
Input for ABCD signal
RFSUM
4
A
I
Input for A signal
RFSUM
5
B
I
Input for B signal
RFSUM
6
C
I
Input for C signal
RFSUM
7
D
I
Input for D signal
RFSUM
8
VCC
P
Power input for Analog Block
Analog
9
VR
O
2.5V Reference voltage output
Bias
10
E
I
Input for E signal
TE Amp
11
F
I
Input for F signal
TE Amp
12
GND
P
Ground for Analog Block
Analog
13
DVCC
P
Power input for Digital Block
DSP
14
DVC
O
1.65V Reference Voltage output
Bias
15
FE
O
Focus Error signal output
FE Amp
16
SBAD
O
Sub Beam ADD output
SBAD
17
TE
O
Tracking Error signal output
TE Amp
18
VSS
P
Digital GND
Digital
19
CSERC
I
Time constant setting for center position servo
SERVO
20
CSERVO
O
Time constant setting for center position servo
SERVO
21
SEROUT
O
Error signal output for center position servo
SERVO
22
RFCLK
I
Clock input for serial interface
S I/F
23
RFDATA
I
Data input for serial interface
S I/F
24
RFEN
I
Data Enable input for serial interface
S I/F
25
VDD
P
Digital VDD
Digital
26
DFCT
O
Defect Detection Comparator output
DFCT
27
CC1
O
Bottom Hold output of Defect detection Amp
DFCT
28
CC2
I
DFCT Bottom Hold
DFCT
29
CDFCT
I
Capacitor for DFCT Bottom Hold
DFCT
30
RFCT
O
RFCT output , ENV output
Mirror
31
CB2
O
Capacitor for RFRP, RFCT
Mirror
CD-ROM 48X RF AMP
S1L9251X
PIN DESCRIPTION (Continued)
No
Name
I/O
Description
Related Block
32
CP2
O
Capacitor for RFRP, RFCT
Mirror
33
RFRP
O
RFRP output
Mirror
34
RFRPI
I
Input for MIRR
MIRR
35
CP_ENV
I
Capacitor for Envelope Hold
ENV
36
RFEQO
O
Summing and EQ signa of A,B,C,Dl
RFSUM
37
AGCIN
I
Input for AGC
AGC
38
CAGC
I
Hold Capacitor for AGC
AGC
39
CLPF
I
LPF output buffer REF connecting pin
AGC
40
PLLF
I
RF Frequency control for wide band PLL
EQ
41
LPFADJ
O
LPF Frequency select for wide band PLL
EQ
42
RFO
O
RF Signal Output
RFSUM
43
CM8
O
EQ Boost frequency for 8X speed
EQ
44
CM4
O
EQ Boost frequency for 4X speed
EQ
SERIAL INTERFACE
Serial Interface Timing Graph
— The Serial Interface controls the Disc type, Speed, AGC, and Laser Diode On/Off.
— The Timing Diagram of the Serial Interface is shown below:
RFEN
Address, 8-bit
RFDATA
Data, 8-Bit
RFCLK
A7
A0
D7
D0
— RFCLK : Clock synchronized with data from MICOM
— RFDATA : Address and Data from MICOM
— RFEN
: Indicates Data is Enabled
5
S1L9251X
CD-ROM 48X RF AMP
Control signals generated from each Address are as below:
•
ADDRESS 01H;
: RFEQ_SEL
: ABCD_ATT
•
ADDRESS 02H;
: EQG_CEN
: AGC_LVL
: C48_SEL
: CAV_SEL
•
ADDRESS 03H;
: AGCON
: AGCIN_Z
: GAIN_PLLF
: PUP_SEL
•
ADDRESS 04H;
: TE_LPF
: TE_ATT
•
ADDRESS 05H;
: DFCT_CNST
: FE_LPF
: FE_ATT
•
ADDRESS 06H;
: SERVO_OFST
•
ADDRESS 07H;
:TBAL
•
ADDRESS 08H;
: RFRP_FREQ
: RFRP_TH
: DFT_TH
•
ADDRESS 09H;
: SBAD_ATT
: RFRP_ATT1
•
ADDRESS 0AH;
: LD_ON
•
ADDRESS 0BH;
: RFRP_SEL
•
ADDRESS 0FH;
: MODE_SEL
:PDmode
6
Table 1. Address Number
7
6
5
4
3
2
1
0
ADD 01H
0
0
0
0
0
0
0
1
ADD 02H
0
0
0
0
0
0
1
0
ADD 03H
0
0
0
0
0
0
1
1
ADD 04H
0
0
0
0
0
1
0
0
ADD 05H
0
0
0
0
0
1
0
1
ADD 06H
0
0
0
0
0
1
1
0
ADD 07H
0
0
0
0
0
1
1
1
ADD 08H
0
0
0
0
1
0
0
0
ADD 09H
0
0
0
0
1
0
0
1
ADD 0AH
0
0
0
0
1
0
1
0
ADD 0BH
0
0
0
0
1
0
1
1
ADD 0FH
0
0
0
0
1
1
1
1
CD-ROM 48X RF AMP
S1L9251X
Serial Interface
•
Address: 01H
DATA
D7
D6
Function
Initial Value
D5
D4
RFEQ_SEL
1
0
D3
D2
RSV
0
1
D1
D0
ABCD_ATT
0
0
1
0
RFEQ_SEL (D7 - D4): EQ Mode
D7
D6
D5
D4
RF EQ SELECT
0
0
0
0
32X
0
0
0
1
26X
0
0
1
0
21X
0
0
1
1
19X
0
1
0
0
16X
0
1
0
1
13X
0
1
1
0
11X
0
1
1
1
8X(CAV)
1
0
0
0
8X(CLV)
1
0
0
1
4X
1
0
1
0
1X
ABCD_ATT (D2 - D0): ABCD attenuate gain select
D2
D1
D0
MODE
0
0
0
− 6dB
0
0
1
− 2.5dB
0
1
0
0dB
0
1
1
2dB
1
0
0
3.5dB
1
0
1
5dB
1
1
0
6dB
7
S1L9251X
•
CD-ROM 48X RF AMP
Address : 02H
DATA
D7
D6
Function
RSV
Initial Value
0
D5
D4
EQG_CEN
0
1
D3
D2
C48_SEL
CAV_SEL
0
0
0
EQG_CEN (D6 - D4): Center gain fine control of EQ boost gain select
D6
D5
D4
CENTER BOOST GAIN
0
0
0
3.5dB
0
0
1
4.5dB
0
1
0
5.5dB
0
1
1
6.5dB
1
0
0
7dB
1
0
1
7.5dB
C48_SEL (D3)
: 4X, 8X select
0 : 4X
1 : 8X
CAV_SEL (D2)
: CAV, CLV select
0 : CAV mode
1 : CLV mode
AGC_LVL (D1 - D0): Output level select of AGC Amp
D1
D0
0
0
0.75V
1
1
1
8
LEVEL
1.0V
1.25V
1
1.5V
D1
D0
AGC_LVL
0
1
CD-ROM 48X RF AMP
•
S1L9251X
Address : 03H
DATA
D7
D6
Function
AGCON
Initial Value
1
D5
D4
AGCIN_Z
0
0
D3
D2
PUP_SEL
1
1
D1
D0
GAIN_PLLF
0
1
1
AGC ON (D7)
1 : AGC ON
0 : AGC OFF
AGCIN_Z (D6 - D4): Input Impedance select of RF AGC
D6
D5
D4
IMPEDANCE
0
0
0
240kΩ
0
0
1
60kΩ
0
1
0
40kΩ
0
1
1
30kΩ
1
0
0
20kΩ
1
0
1
15kΩ
1
1
0
10kΩ
PUP_SEL (D3)
: RF_SUM or A, B, C, D select
0 : RF_SUM Pick_Up
1 : ABCD_Pick_Up
GAIN_PLLF (D2 - D0): Peak Frequency Change Sensitivity Select of RF_EQ.according to PLLF’s Voltage
D2
D1
D0
Frequency Change Sensitivity according to PLLF Voltage
0
0
0
− 6dB
0
0
1
− 4dB
0
1
0
− 2dB
0
1
1
0dB
1
0
0
2dB
1
0
1
4dB
1
1
0
6dB
9
S1L9251X
•
CD-ROM 48X RF AMP
Address : 04H
DATA
D7
Function
Initial Value
D6
D5
RSV
0
D4
TE_LPF
0
0
D2
RSV
0
0
TE_LPF (D5 - D4): TE LPF frequency select
D5
D4
MODE
0
0
40 kHz
0
1
80 kHz
1
0
120kHz
1
1
360kHz
TE_ATT (D2 - D0): TE attenuate gain select
10
D3
D2
D1
D0
MODE
0
0
0
− 6 dB
0
0
1
− 2.5 dB
0
1
0
0 dB
0
1
1
1.5 dB
1
0
0
2.5 dB
1
0
1
3.5 dB
1
1
0
5 dB
1
1
1
6 dB
D1
D0
TE_ATT
0
1
0
CD-ROM 48X RF AMP
•
S1L9251X
Address : 05H
DATA
Function
Initial Value
D7
D6
D5
DFCT_CNST
0
D4
FE_LPF
0
0
D3
D2
RSV
0
0
D1
D0
FE_ATT
0
1
0
DFCT_CNST (D7 - D6): Short time constant of defect detect block select
D7
D6
DEFECT
0
0
100µS/V
0
1
25µS/V
1
0
12.5µS/V
1
1
5.6µS/V
FE_LPF (D5 - D4): FE LPF frequency select
D5
D4
MODE
0
0
40 kHz
0
1
80 kHz
1
0
120kHz
1
1
360kHz
FE_ATT (D2 - D0): FE attenuate gain select
D2
D1
D0
MODE
0
0
0
− 6 dB
0
0
1
− 2.5 dB
0
1
0
0 dB
0
1
1
1.5 dB
1
0
0
2.5 dB
1
0
1
3.5 dB
1
1
0
5 dB
1
1
1
6 dB
FE ATT Gain
11
S1L9251X
•
CD-ROM 48X RF AMP
Address : 06H
DATA
D7
D6
D5
D4
Function
Initial Value
D3
D2
D1
D0
0
0
0
D3
D2
D1
D0
0
0
0
0
SERVO_OFST
1
0
0
0
0
SERVO_OFST (D7 - D0): Center position servo offset level
At “00”, output of OFFSET is Min. At “FF”, output of OFFSET is Max.
•
Address : 07H
DATA
D7
D6
D5
D4
Function
Initial Value
TBAL
1
0
0
0
TBAL (D7 - D0): Output voltage swing level is below when Input conditions are
E : 100mVpp 1kHz
F : -100mVpp 1kHz
12
TBAL
Output Voltage Level
00
1.25 Vpp
80
1
FF
0.85 Vpp
Vpp
CD-ROM 48X RF AMP
•
S1L9251X
Address : 08H
DATA
Function
Initial Value
D7
D6
D5
D4
RFRP_FREQ
0
D3
D2
DFT_TH
0
0
0
D1
D0
RFRP_TH
0
0
1
1
RFRP_RFEQ (D7 - D6): RFRP PEAK-BOTTOM HOLD Frequency Select
D7
D6
RFRP FREQ
RFRP LPF
0
0
40 kHz
80 kHz
0
1
80 kHz
160kHz
1
0
120 kHz
240kHz
1
1
360 kHz
720kHz
DFT_TH (D5 - D3): DEFECT Slicer Level Select
D5
D4
D3
SLICE LEVEL
0
0
0
50mV
0
0
1
100mV
0
1
0
200mV
0
1
1
300mV
1
0
0
400mV
1
0
1
500mV
1
1
0
600mV
1
1
1
700mV
RFRP_TH (D2 - D0): RFRP Level Selec
D2
D1
D0
OFFSET LEVEL
0
0
0
−300mV
0
0
1
−200mV
0
1
0
− 100mV
0
1
1
0mV
1
0
0
100mV
1
0
1
200mV
1
1
0
300mV
13
S1L9251X
•
CD-ROM 48X RF AMP
Address : 09H
DATA
D7
Function
RSV
Initial Value
0
D6
D5
D4
D3
RFRP_ATT1
0
1
D2
RSV
0
0
D1
D0
SBAD_ATT
0
1
0
RFRP_ATT1 (D6 - D4): RFRP Output Level Select
D6
D5
D4
MODE
0
0
0
- 200mVpp
0
0
1
- 100mVpp
0
1
0
0mVpp
0
1
1
100mVpp
1
0
0
200mVpp
* When 1Vpp, 7% modulation, 10kHz carrier input, output Vpp change amount.
SBAD_ATT (D2-D0): SBAD Output Gain Select
•
D2
D1
D0
MODE
0
0
0
− 6 dB
0
0
1
− 2.5 dB
0
1
0
0 dB
0
1
1
1.5 dB
1
0
0
2.5 dB
1
0
1
3.5 dB
1
1
0
5 dB
1
1
1
6 dB
Address : 0AH
DATA
D7
D6
D5
Function
Initial Value
LD_ON (D0)
D3
D2
D1
RSV
0
0
: LD On/Off Select
0 : LD OFF
1 : LD ON
14
D4
0
0
D0
LD_ON
0
0
0
1
CD-ROM 48X RF AMP
•
S1L9251X
Address : 0BH
DATA
D7
D6
D5
Function
D4
D3
D2
D1
RSV
Initial Value
0
0
0
0
D0
RFRP_SEL
0
0
0
D2
D1
0
RFRP_SET (D0): RFRP Block Output Select
•
D0
OUTPUT
0
RFRP, RFCT
1
ENVELOPE
Address : 0FH
DATA
D7
Function
D6
D5
RSV
Initial Value
0
MLDE_SEL (D4)
0
D4
D3
MODE_SEL
0
1
RSV
0
0
D0
PDmode
0
1
: CD-ROM, CD-RW Select
0 : CD-RW
1 : CD-ROM
PDmode (D0)
: Power Down Mode On/Off Select
0 : Power Down Mode
1 : Normal Mode
15
S1L9251X
CD-ROM 48X RF AMP
BLOCK DESCRIPTION
Tracking Error Amp
-
.TE_ATT
+
F
+
.TBAL
E
+
+
VR
VR
.MODE_SEL
+
TE
-
.TE_LPF
VR
VOFST
— The Gain of the E, F signals are controlled by the Tracking Balance signal(TBAL).
— The output of TE AMP is expressed by -K(E-F).
— CD-ROM or CD-RW operation is selected by CDRW signal.
— Output stage is compatible to 3.3 V Servo operation.
Focus Error Amp
VR
.FE_ATT
A
C
+
.Mode
+
-
-
-
+
FE
VR
B
.FE_LPF
D
VOFST
— The Gain of the input signals A, C and B, D can be adjusted by the Focus Balance signal.
— FE signal is expressed by − K {(PAC) − (PBD)}.
— CD-ROM or CD-RW operation is selected by CDRW signal.
— Output stage is compatible to 3.3 V Servo operation.
16
CD-ROM 48X RF AMP
S1L9251X
AGC & EQ
CM4
.RFEQ_SEL
CM8
.EQG_CEN
.CAV_SEL
SUM
.PUP_SEL
+
a
b
+
.Mode_SEL
RFEQO
+
-
c
d
.ABCD-ATT
Pick-UP
.AGCON/OFF
.AGC-LVL
.AGCIN_Z
AGCIN
.GAIN_PLLF
.RFEQ_SEL
RFO
AGC
LPF
CAGC
CLPF CLPFi PLLF LPFADJ
— Input level of RF AMP signal is convert to ouput level selected by AGC block.
— It is discreminated that CD-ROM or CD-RW.
— AGC Amp is designed to work with the Wide Range PLL.
— Boost Control of the Summing Amp is possible using the EQ Control Switc
RFRP & RFCT Block & Envelope Detector
PEAK
-HOLD2
vcc
+
RFCT
BOTTOM
-HOLD2
Voffset
PEAK
-HOLD1
vr
+
RFRPI
-
A1
vcc
dvc
+
+
BOTTOM
-HOLD1
+
-
-
A2
dvc
RFRP
A3
vofst
1
1
Peak
AGCIN
+
-
cp_env
— This circuit generates RF’s amplitude signals by detecting the upper envelope, using Servo Control signals
for Focus Error signal balance adjustment.
— Capacitance connected to CE that decides the time-constant value.
— RFRP is a block for detecting signals crossing the Track.
— Using the AC-coupled ABCD signals, carries out Peak and Bottom hold operation.
17
S1L9251X
CD-ROM 48X RF AMP
Defect Detector Block
CC1
VR
A
B
C
D
CC2
+
-
VR
+
-
.RFRP_FREQ
PeakHold
DVCC
+
+
-
.Mode_sel
DFCT
.DFT_TH
+
VR
CDFCT
— Block for detecting defects such as disc scratch or finger prints.
— External capacitor decides the time constant value.
— It detects ABCD signals through high speed peak hold and low speed bottom hold.
— After add DC to high speed peak hold, .then compares it to low-speed peak hold output.
ALPC
CD-ON
AVSS
vdc125
+
-
+
.LD_OFF
+
AVDD
-
LDO
P-sub
LD
— Circuit for controlling the light power of the Laser Diode.
— Laser Power fluctuation caused by voltage and temperature changes are detected by Monitor Photo
Diode’s output current, then it is able to control the stable output power of Laser Diode.
— ALPC on/off is controlled by LDON switch.
18
CD-ROM 48X RF AMP
S1L9251X
SBAD
-
VR
+
E
.SBAD_ATT
VR
+
+
-
+
.Mode
SBAD
+
F
VR
.TBAL
VOFST
VR
— E, F signal are excuted tracking balance adjust and added, and passed LPF.
— It is expressed by K (E + F)
Reference Block
DVCC
AVCC
+
+
−
−
1.65V
2.5V
DVC
VR
— This block generates Reference voltage.
— The Output voltages are 1.65V (from RF part supply input) and 2.5V (from SERVO part supply input) .
Vdc Offset Block
DVC
-
VR
+
VOFST
VR
— It shifts the output stage to match the Servo and DSP block.
19
S1L9251X
CD-ROM 48X RF AMP
Center Servo Block
vofst
a
+
d
b
c
DAC
+
Offset
Control
Pick-UP
From
Micom
— This block controls level shift in seek mode.
— Output signal is expressed by - K ((B + C) - (A + D))
20
serout
CD-ROM 48X RF AMP
S1L9251X
ELECTRICAL CHARACTERISTICS
Bias Block
No
Item
Symbol
Conditions
Min.
Typ.
Max.
Unit
1
VR Output Voltage
VR
VR Voltage Measurement
2.4
2.5
2.6
V
2
VR Output Voltage1
VR1
VR=3mA Impression
2.4
2.5
2.6
V
3
VR Output Voltage2
VR2
VR=-3mA Impression
2.4
2.5
2.6
V
4
DVC Output Voltage
DVC
DVC Voltage Measurement
1.55
1.65
1.75
V
5
DVC Output Voltage1
DVC1
DVC=3mA Impression
1.55
1.65
1.75
V
6
DVC Output Voltage1
DVC2
DVC=-3mA Impression
1.55
1.65
1.75
V
Min.
Typ.
Max.
Unit
4.5
5.0
5.5
V
75
85
95
mA
Supply Voltage
No
Item
Symbol
7
Operating Power Voltage
Vcc
8
Power Current
Icc
Conditions
Vin = 0
Tracking Error Amp
No
Item
Symbol
Conditions
Min.
Typ.
Max.
Unit
TBAL1
E: 1kHz Sine 100mVpp
F: 1kHz Sine(I) 100mVpp TBAL=FF
−
−
0.8
Vpp
10
TBAL2
E: 1kHz Sine 100mVpp
F: 1kHz Sine(I) 100mVpp TBAL=80
0.9
1.0
1.1
Vpp
11
TBAL3
E: 1kHz Sine 100mVpp
F: 1kHz Sine(I) 100mVpp TBAL=00
1.25
−
−
Vpp
TBW1
40
−
kHz
TBW2
E: 100mVpp Sine Frequency Sweep
F: 100mVpp Sine Frequency Sweep
−
13
BandWidth
(-3dB Freq.)
−
360
−
kHz
14
Offset Voltage
TOFS1
E,F: VR TBAL = 00 (CD-ROM mode)
− 80
0
80
mV
TOFS2
E,F: VR TBAL = 00 (CD-RW mode)
−320
0
320
mV
9
12
Tracking Balance
Adjustment Range
15
16
High Output Voltage
THout
−
2.5
−
−
V
17
Low Output Voltage
TLout
−
−
−
0.5
V
18
Output Voltage 1
TEout1
E: 1kHz Sine 60mVpp
F: 1kHz Sine(1) 60mVpp (CD-ROM
Mode)
1.1
1.2
1.3
Vpp
19
Output Voltage 2
TEout2
E: 1kHz Sine 15mVpp
F: 1kHz Sine(1) 15mVpp (CD-RW
Mode)
1.0
1.2
1.4
Vpp
21
S1L9251X
CD-ROM 48X RF AMP
Focus Error AMP
No
Item
Symbol
Conditions
Min. Typ. Max.
Unit
20
Output Voltage 1
FEout1
AC IN = 300mVpp(each) + Sine 1kHz + VR,
BD IN = VR,
1.1
1.2
1.3
Vpp
21
Output Voltage 2
FEout2
BD IN = 300mVpp(each) + Sine 1kHz + VR,
AC IN = VR,
1.1
1.2
1.3
Vpp
22
Output Voltage 3 (CD-R)
FEout3
AC IN = 75mVpp(each) + Sine 1kHz + VR,
BD IN = VR,
1.0
1.2
1.4
Vpp
23
Output Voltage 4 (CD-R)
FEout4
BD IN = 75mVpp(each) + Sine 1kHz + VR,
AC IN = VR,
1.0
1.2
1.4
Vpp
24
Voltage Gain Difference1 ∆GFE1
GTE1-GTE2
−
0
−
dB
25
Voltage Gain Difference2 ∆GFE2
GTE3-GTE4
−
0
−
dB
26
Bandwidth (-3dB Freq.)
(A,C) : 100mVpp Sine
Frequency SWEEP
(B,D) : 100mVpp Sine(I)
Frequency SWEEP
FE_LPF = 00
32
40
48
kHz
FE_LPF = 11
−
180
−
27
28
FBW1
TBW2
Offset Voltage
29
FOFF1
(A-D) : VR, GAIN_FE=8dB,
FEOFST = 80 (CD-ROM Mode)
− 40
0
40
mV
FOFF2
(A-D) : VR, GAIN_FE=8dB,
FEOFST = 80 (CD-R/W Mode)
−100
0
100
mV
30
Output High Voltage
FHout
−
2.5
−
−
V
31
Output Low Voltage
FLout
−
−
−
0.5
V
AGC & EQ Block
22
No
Item
Symbol
Conditions
Min. Typ. Max.
Unit
32
Frequency Characteristic1
F1
−3dB Frequency at RFEQO , CAV mode,
Input=2.5V DC
45
−
−
MHz
33
GAIN Characteristic1
G1
CAV Mode,CD-ROM Mode at RFEQO
1
3
5
dB
34
GAIN Characteristic2
G2
CAV Mode,CD-RW Mode at RFEQO
13
15
17
dB
35
Peak Frequency1
Fp1
CLV Mode, 4X Mode
4.2
5.2
6.2
MHz
36
Peak Frequency2
Fp2
CLV Mode, 8X Mode
8.4
10.4
12.4
MHz
37
AGC Voltage Gain
GAGC
AGCIN=1Vpp, Sine, 1Meg, AGC level
Adjustment
0.75
−
1.5
Vpp
38
AGC Standard Output
GAGCOP
AGCIN=1Vpp, Sine, 1Meg
0.9
1
1.1
Vpp
39
Maximum Gain (Gpeak)
Range
RFEQO
(A-D):250mVppSweepingSine+VC, CLV
mode, 8X at 10.4MHz , EQG_CEN=3.5
2.5
3.5
4.5
dB
40
EQG_CEN=5.5dB
4.5
5.5
6.5
41
EQG_CEN=7.5dB
6.5
7.5
8.5
CD-ROM 48X RF AMP
S1L9251X
RF Envelop Detector
No
Item
Symbol
Conditions
Min.
Typ.
Max.
Unit
0.4
−
−
V
42
Output Voltage 1
VOENV1
ABCD: Not inputting
43
Output Voltage 2
VOENV2
ABCD: 250mVpp(each) + Sine
500kHz + VR, No signal Standard
−
0.7
−
V
44
Output Voltage 3
VOENV3
ABCD: 250mVpp(each) + Sine
500kHz + VR
−
−
2.8
V
RFRP
No
Item
Symbol
Conditions
Min. Typ. Max.
Unit
45
Output Level 1
VRPO1
RFRPI : 1.0Vpp 10kHz Sine 70% AM
fcarrier :1Mhz Modulation
0.9
1
1.1
Vpp
46
Output Level 2
VRPO2
RFRPI : 1.0Vpp 30kHz Sine 70% AM
fcarrier :1Mhz Modulation
0.7
−
−
Vpp
47
Output Level 3
VRPO3
RFRPI : 1.0Vpp 80kHz Sine 70% AM
fcarrier :3Mhz Modulation
0.7
−
−
Vpp
48
Output Level 4
VRPO4
RFRPI : 1.0Vpp 160kHz Sine 70% AM
fcarrier :6Mhz Modulation
0.7
−
−
Vpp
49
Output Level 5
VRPO5
RFRPI : 1.0Vpp 320kHz Sine 70% AM
fcarrier :10Mhz Modulation
0.7
−
−
Vpp
RFCT
No
50
Item
Level
Symbol
Vctl
Conditions
RFRPI : 1.0Vpp 10kHz sine 70%
AM fcarrier : 1MHz Modulation
Min.
Typ.
Max.
Unit
1.35
1.65
1.95
V
Defect Detector
No
Item
Symbol
51
Detected Min. Operation
Input Voltage
VDFCT1
52
Detected Max. Operation
Input Voltage
VDFCT2
53
High Output Voltage
Hout
54
Low Output Voltage
Lout
55
High Speed Peak Hold
Charge/discharge Time
Constant Range
HPHR
56
Low Speed Peak Hold
Discharge Time
Constant Range
LPHR
Conditions
Min. Typ. Max.
Unit
−
0.3
0.5
V
1.8
−
−
V
−
2.5
−
−
V
−
−
−
0.5
V
250mVpp 200Hz Square Wave Full AM fcar
1MHz Sine + Vc,
RFRP_FREQ: STEP Variation
5.6
−
100
uS/V
250mVpp 200Hz Square Wave Full AM fcar
1MHz Sine + Vc
10
−
100
uS/V
200Hz Square Wave Full AM fcar
1MHz Sine + Vc
23
S1L9251X
CD-ROM 48X RF AMP
ALPC
No
Item
Symbol
Conditions
57
ALPC Operating Voltage PL
VAPPL
VPD=0mV, VLDON=0V
58
ALPC Operating Voltage PH
VAPPH
VPD=600mV, VLDON=0V
59
LD-OFF Voltage
VLDOF
LDC=L, VCC Standard
60
ALPC Operating Voltage HP
VAPHP
61
ALPC Operating Voltage 1
62
ALPC Operating Voltage 2
Min. Typ. Max. Unit
−
−
1.1
V
3.9
−
−
V
− 0.7
−
−
V
VPD=2.5V
3.9
−
−
V
VALPC1
IPD=0.8mA LD Impression, VLDON=0V
2.5
−
−
V
VALPC2
IPD=-0.8mA LD Impression, VLDON=0V
−
−
2.5
V
Min.
Typ.
Max.
Unit
SBAD
No
24
Item
Symbol
Conditions
63
Voltage Gain 1
SBGv1
f=1kHz, CD-Rom mode
6
9
10
dB
64
Voltage Gain 2
SBGv2
f=1kHz, CD-RW mode
18
21
22
dB
65
Frequency Characteristics
SBfc
−3dB point
−
44
−
kHz
66
Standard Operating Voltage
SBVopr1
VR Standard,CD-Rom mode
−1.75
−1.65
−1.55
V
67
Standard Operating Voltage
SBVopr2
VR Standard, CD-RW mode
−1.55
−1.45
−1.35
V
68
Output Upper Voltage
SBVoh
GND Standard
2.5
−
−
V
69
Output Lower Voltage
SBVol
GND Standard
−
−
0.5
V
PACKAGE DIMENSION
13.20 + 0.30
0-8
10.00 + 0.20
10.00 + 0.20
+ 0.10
- 0.05
0.10 MAX
44-QFP-1010B
0.80 + 0.20
13.20 + 0.30
0.15
#44
#1
0.80
+ 0.10
0.35 - 0.05
0.15 MAX
0.05 MIN
(1.00)
2.05 + 0.10
2.30 MAX
NOTE: Dimensions are in millimeters.