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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
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S1L9251X CD-ROM 48X RF AMP
BLOCK DIAGRAM
Internal Block Diagram
LDO
PD
SUM
VCC
VR
CLPF
44 43 42 41 40 39 38 37 36 35 34
1
+
-
Peak
Bottom
Peak
AGCLPF
DVCC
Vbg
2
3
4
A
B
5
6
C
7
D
8
9
+
VCC
+
+
-
+
-
+
-
+
-
Peak
Bottom
+
-
+
offset
+
-
+
DVC
+
+
-
Peak
+
-
RFRPICP_ENVRFEQOAGCINCAGCPLLFLPFADJRFOCM8CM4
33
RFRP
32
CP2
31
CB2
30
RFCT
CDFCT
29
28
+
-
DVCC
+
CC2
CC1
27
26
DFCT
25
VDD
-
E
10
11
F
12 13 14 15 16 17 18 19 20 21 22
GND DVCC DVC SBADFE TE RFCLK
+
+
+
VSS
+
CSERVOCSERC
SERIAL
I/F
SEROUT
24
RFEN
23
RFDATA
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CD-ROM 48X RF AMP S1L9251X
External Application
RF Output
LD
PD
SUM
A
B
C
D
E
F
LASER PICK UP
2.5V Analog Voltage
Output
VCC
VR
44 43 42 41 40 39 38 37 36 35 34
RFO
CM8
CM4
1
LDO
2
PD
3
SUM
4
A
5
B
6
C
7
D
8
VCC
9
VR
10
E
11
F
GND
DVCC
DVC
12 13 14 15 16 17 18 19 20 21 22
LPFADJ
FE
PLLF
SBAD
CLPF
TE
VCCDSP
CAGC
VSS
AGCIN
CSERC
RFEQO
CSERVO
CP_ENV
SEROUT
RFRPI
RFRP
CP2
CB2
RFCT
CDFCT
CC2
CC1
DFCT
VDD
RFEN
RFDATA
RFCLK
33
32
31
30
29
28
27
26
25
24
23
RFRP Output
VR
VR
RFCT Output
DFCT Output
VDD
Enable Signal Input
Serial Data Input
GND
DVCC
1.65V
SBAD Output
FE Output
TE Output
Center Servo
Output
Clock Input
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S1L9251X CD-ROM 48X RF AMP
PIN DESCRIPTION
No 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
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
Power input for Analog Block
Analog
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
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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
RFDATA
RFCLK
— RFCLK : Clock synchronized with data from MICOM
— RFDATA : Address and Data from MICOM
— RFEN : Indicates Data is Enabled
Address, 8-bit Data, 8-Bit
A7 A0 D7 D0
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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
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
Table 1. Address Number
7 6 5 4 3 2 1 0
• 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
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CD-ROM 48X RF AMP S1L9251X
Serial Interface
• Address: 01H
DATA D7 D6 D5 D4 D3 D2 D1 D0
Function RFEQ_SEL RSV ABCD_ATT
Initial Value 1 0 0 1 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
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S1L9251X CD-ROM 48X RF AMP
• Address : 02H
DATA D7 D6 D5 D4 D3 D2 D1 D0
Function RSV EQG_CEN C48_SEL CAV_SEL AGC_LVL
Initial Value 0 0 1 0 0 0 0 1
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 LEVEL
0 0.75V
0 1 1.0V
1 1.25V
1 1 1.5V
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CD-ROM 48X RF AMP S1L9251X
• Address : 03H
DATA D7 D6 D5 D4 D3 D2 D1 D0
Function AGCON AGCIN_Z PUP_SEL GAIN_PLLF
Initial Value 1 0 0 1 1 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
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S1L9251X CD-ROM 48X RF AMP
• Address : 04H
DATA D7 D6 D5 D4 D3 D2 D1 D0
Function RSV TE_LPF RSV TE_ATT
Initial Value 0 0 0 0 0 0 1 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
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
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CD-ROM 48X RF AMP S1L9251X
• Address : 05H
DATA D7 D6 D5 D4 D3 D2 D1 D0
Function DFCT_CNST FE_LPF RSV FE_ATT
Initial Value 0 0 0 0 0 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
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S1L9251X CD-ROM 48X RF AMP
• Address : 06H
DATA D7 D6 D5 D4 D3 D2 D1 D0
Function SERVO_OFST
Initial Value 1 0 0 0 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 D3 D2 D1 D0
Function TBAL
Initial Value 1 0 0 0 0 0 0 0
TBAL (D7 - D0): Output voltage swing level is below when Input conditions are
E : 100mVpp 1kHz
F : -100mVpp 1kHz
TBAL Output Voltage Level
00 1.25 Vpp
80 1 Vpp
FF 0.85 Vpp
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CD-ROM 48X RF AMP S1L9251X
• Address : 08H
DATA D7 D6 D5 D4 D3 D2 D1 D0
Function RFRP_FREQ DFT_TH RFRP_TH
Initial Value 0 0 0 0 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
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S1L9251X CD-ROM 48X RF AMP
• Address : 09H
DATA D7 D6 D5 D4 D3 D2 D1 D0
Function RSV RFRP_ATT1 RSV SBAD_ATT
Initial Value 0 0 1 0 0 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 D4 D3 D2 D1 D0
Function RSV LD_ON
Initial Value 0 0 0 0 0 0 0 1
LD_ON (D0) : LD On/Off Select
0 : LD OFF
1 : LD ON
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CD-ROM 48X RF AMP S1L9251X
• Address : 0BH
DATA D7 D6 D5 D4 D3 D2 D1 D0
Function RSV RFRP_SEL
Initial Value 0 0 0 0 0 0 0 0
RFRP_SET (D0): RFRP Block Output Select
D0 OUTPUT
0 RFRP, RFCT
1 ENVELOPE
• Address : 0FH
DATA D7 D6 D5 D4 D3 D2 D1 D0
Function RSV MODE_SEL RSV PDmode
Initial Value 0 0 0 1 0 0 0 1
MLDE_SEL (D4) : 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
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S1L9251X CD-ROM 48X RF AMP
BLOCK DESCRIPTION
Tracking Error Amp
F
.TBAL
VR
E
-
+
+
-
-
+
.MODE_SEL
.TE_ATT
VR
-
+
VR
+
-
.TE_LPF
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
A
C
B
D
+
-
.Mode
.FE_ATT
-
+
VR
VR
+
-
.FE_LPF
VOFST
TE
FE
— 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.
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CD-ROM 48X RF AMP S1L9251X
AGC & EQ
.RFEQ_SEL
CM4
CM8
.EQG_CEN
.CAV_SEL
SUM
a
b
c
d
Pick-UP
.PUP_SEL
AGCIN
+
.AGCON/OFF
.AGC-LVL
.AGCIN_Z
AGC
CAGC
.Mode_SEL
.GAIN_PLLF
.RFEQ_SEL
+
.ABCD-ATT
LPF
PLLF
LPFADJ
CLPFiCLPF
+
-
RFO
RFEQO
— 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
RFRPI
PEAK
-HOLD2
BOTTOM
dvc
AGCIN
-HOLD2
+
-
A2
Peak
cp_env
Voffset
PEAK
vr
vofst
+
-
-HOLD1
BOTTOM
-HOLD1
+
-
dvc
1
1
vcc
+
-
RFCT
A1
vcc
+
-
RFRP
A3
+
-
— 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.
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S1L9251X CD-ROM 48X RF AMP
Defect Detector Block
CC1
A
B
C
D
VR
.Mode_sel
VR
+
-
+
-
.RFRP_FREQ
Peak-
Hold
VR
+
-
.DFT_TH
+
-
DVCC
+
— 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.
CC2
DFCT
CDFCT
ALPC
CD-ON
AVSS
AVDD
.LD_OFF
+
-
LDO
P-sub
LD
vdc125
+
-
+
-
— 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.
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CD-ROM 48X RF AMP S1L9251X
SBAD
E
F
.TBAL
-
+
-
+
VR
VR
-
+
.Mode
.SBAD_ATT
VR
-
+
VR
+
-
VOFST
— E, F signal are excuted tracking balance adjust and added, and passed LPF.
— It is expressed by K (E + F)
Reference Block
DVCC
+
−
1.65V
2.5V
SBAD
AVCC
+
−
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
-
+
VR
VOFST
— It shifts the output stage to match the Servo and DSP block.
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S1L9251X CD-ROM 48X RF AMP
Center Servo Block
vofst
a
d
b
c
Pick-UP
DAC
+
Offset
Control
From
Micom
— This block controls level shift in seek mode.
— Output signal is expressed by - K ((B + C) - (A + D))
+
serout
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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
Supply Voltage
No Item Symbol Conditions Min. Typ. Max. Unit
7 Operating Power Voltage Vcc 4.5 5.0 5.5 V
8 Power Current Icc Vin = 0 75 85 95 mA
Tracking Error Amp
No Item Symbol Conditions Min. Typ. Max. Unit
9 Tracking Balance
Adjustment Range
10 TBAL2 E: 1kHz Sine 100mVpp
11 TBAL3 E: 1kHz Sine 100mVpp
12 BandWidth
(-3dB Freq.)
13 TBW2 − 360 − kHz
14 Offset Voltage TOFS1 E,F: VR TBAL = 00 (CD-ROM mode) − 80 0 80 mV
15 TOFS2 E,F: VR TBAL = 00 (CD-RW mode) −320 0 320 mV
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
19 Output Voltage 2 TEout2 E: 1kHz Sine 15mVpp
TBAL1 E: 1kHz Sine 100mVpp
F: 1kHz Sine(I) 100mVpp TBAL=FF
F: 1kHz Sine(I) 100mVpp TBAL=80
F: 1kHz Sine(I) 100mVpp TBAL=00
TBW1 E: 100mVpp Sine Frequency Sweep
F: 100mVpp Sine Frequency Sweep
F: 1kHz Sine(1) 60mVpp (CD-ROM
Mode)
F: 1kHz Sine(1) 15mVpp (CD-RW
Mode)
− − 0.8 Vpp
0.9 1.0 1.1 Vpp
1.25 − − Vpp
− 40 − kHz
1.1 1.2 1.3 Vpp
1.0 1.2 1.4 Vpp
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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,
21 Output Voltage 2 FEout2 BD IN = 300mVpp(each) + Sine 1kHz + VR,
AC IN = VR,
22 Output Voltage 3 (CD-R) FEout3 AC IN = 75mVpp(each) + Sine 1kHz + VR,
BD IN = VR,
23 Output Voltage 4 (CD-R) FEout4 BD IN = 75mVpp(each) + Sine 1kHz + VR,
AC IN = VR,
24 Voltage Gain Difference1 ∆GFE1 GTE1-GTE2 − 0 − dB
25 Voltage Gain Difference2 ∆GFE2 GTE3-GTE4 − 0 − dB
26 Bandwidth (-3dB Freq.) FBW1 (A,C) : 100mVpp Sine
27 TBW2 FE_LPF = 11 − 180 −
28 Offset Voltage FOFF1 (A-D) : VR, GAIN_FE=8dB,
29 FOFF2 (A-D) : VR, GAIN_FE=8dB,
30 Output High Voltage FHout
31 Output Low Voltage FLout
Frequency SWEEP
(B,D) : 100mVpp Sine(I)
Frequency SWEEP
FEOFST = 80 (CD-ROM Mode)
FEOFST = 80 (CD-R/W Mode)
−
−
FE_LPF = 00 32 40 48 kHz
− 40 0 40 mV
−100 0 100 mV
1.2
1.1
1.2
1.1
1.2
1.0
1.2
1.0
2.5 − − V
1.3
1.3
1.4
1.4
Vpp
Vpp
Vpp
Vpp
− − 0.5 V
AGC & EQ Block
No Item Symbol Conditions Min. Typ. Max. Unit
32 Frequency Characteristic1 F1
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
38 AGC Standard Output GAGCOP AGCIN=1Vpp, Sine, 1Meg 0.9 1 1.1 Vpp
39 Maximum Gain (Gpeak)
Range
40 EQG_CEN=5.5dB 4.5 5.5 6.5
41 EQG_CEN=7.5dB 6.5 7.5 8.5
RFEQO (A-D):250mVppSweepingSine+VC, CLV
−3dB Frequency at RFEQO , CAV mode,
Input=2.5V DC
Adjustment
mode, 8X at 10.4MHz , EQG_CEN=3.5
45 − − MHz
0.75 − 1.5 Vpp
2.5 3.5 4.5 dB
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CD-ROM 48X RF AMP S1L9251X
RF Envelop Detector
No Item Symbol Conditions Min. Typ. Max. Unit
42 Output Voltage 1 VOENV1 ABCD: Not inputting 0.4 − − V
43 Output Voltage 2 VOENV2 ABCD: 250mVpp(each) + Sine
− 0.7 − V
500kHz + VR, No signal Standard
44 Output Voltage 3 VOENV3 ABCD: 250mVpp(each) + Sine
− − 2.8 V
500kHz + VR
RFRP
No Item Symbol Conditions Min. Typ. Max. Unit
45 Output Level 1 VRPO1 RFRPI : 1.0Vpp 10kHz Sine 70% AM
0.9 1 1.1 Vpp
fcarrier :1Mhz Modulation
46 Output Level 2 VRPO2 RFRPI : 1.0Vpp 30kHz Sine 70% AM
0.7 − − Vpp
fcarrier :1Mhz Modulation
47 Output Level 3 VRPO3 RFRPI : 1.0Vpp 80kHz Sine 70% AM
0.7 − − Vpp
fcarrier :3Mhz Modulation
48 Output Level 4 VRPO4 RFRPI : 1.0Vpp 160kHz Sine 70% AM
0.7 − − Vpp
fcarrier :6Mhz Modulation
49 Output Level 5 VRPO5 RFRPI : 1.0Vpp 320kHz Sine 70% AM
0.7 − − Vpp
fcarrier :10Mhz Modulation
RFCT
No Item Symbol Conditions Min. Typ. Max. Unit
50 Level Vctl RFRPI : 1.0Vpp 10kHz sine 70%
1.35 1.65 1.95 V
AM fcarrier : 1MHz Modulation
Defect Detector
No Item Symbol Conditions Min. Typ. Max. Unit
51 Detected Min. Operation
Input Voltage
52 Detected Max. Operation
Input Voltage
53 High Output Voltage Hout
54 Low Output Voltage Lout
55 High Speed Peak Hold
Charge/discharge Time
Constant Range
56 Low Speed Peak Hold
Discharge Time
Constant Range
VDFCT1 200Hz Square Wave Full AM fcar
1MHz Sine + Vc
VDFCT2 1.8 − − V
−
−
HPHR 250mVpp 200Hz Square Wave Full AM fcar
1MHz Sine + Vc,
RFRP_FREQ: STEP Variation
LPHR 250mVpp 200Hz Square Wave Full AM fcar
1MHz Sine + Vc
0.3 0.5 V
−
2.5 − − V
− − 0.5 V
5.6 − 100 uS/V
10 − 100 uS/V
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S1L9251X CD-ROM 48X RF AMP
ALPC
No Item Symbol Conditions Min. Typ. Max. Unit
57 ALPC Operating Voltage PL VAPPL VPD=0mV, VLDON=0V − − 1.1 V
58 ALPC Operating Voltage PH VAPPH VPD=600mV, VLDON=0V 3.9 − − V
59 LD-OFF Voltage VLDOF LDC=L, VCC Standard − 0.7 − − V
60 ALPC Operating Voltage HP VAPHP VPD=2.5V 3.9 − − V
61 ALPC Operating Voltage 1 VALPC1 IPD=0.8mA LD Impression, VLDON=0V 2.5 − − V
62 ALPC Operating Voltage 2 VALPC2 IPD=-0.8mA LD Impression, VLDON=0V − − 2.5 V
SBAD
No Item Symbol Conditions Min. Typ. Max. Unit
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
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PACKAGE DIMENSION
13.20
10.00
+ 0.30
+ 0.20
0-8
0.15
+ 0.10
- 0.05
13.20 + 0.30
44-QFP-1010B
10.00 + 0.20
#44
#1
0.80
NOTE: Dimensions are in millimeters.
+ 0.10
- 0.05
0.35
0.15 MAX
(1.00)
0.10 MAX
0.80 + 0.20
0.05 MIN
2.05
+ 0.10
2.30 MAX
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