HA12220 Hitachi Semiconductor, HA12220 Datasheet
HA12220
Related parts for HA12220
HA12220 Summary of contents
Page 1
... RF amplifier frequency characteristics 30MHz (–3dB) in case of peaking off High-speed access support (The mirror circuit internal time constant can be switched between normal, 4 and 8 modes.) Support for CD-RW playback Few external components Available to set the stand-by mode FP-28TB package HA12220F ADE-207-230 (Z) Target Specification 1st. Edition April 1997 ...
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... HA12220F Block Diagram 0 RF1 V BYPS CC BIAS RF2 1 EQ – RF3 + 2 RFS RF4 3 – TR1 TR1 + TVR + – 4 – BAL TR2 TR2 + TVR – APC HD49250 HD49250 Rev.1, Apr. 1997, page 0 GND 24 23 VCF ...
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... HA12220F Function RF FE FSA amplifier input2 RF FE FSA amplifier input3 RF FE FSA amplifier input4 RF FE FSA amplifier input1 TR1 amplifier input TR2 amplifier input APC amplifier input APC amplifier output Tracking error signal output Focus error signal output ...
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... HA12220F Pin Description and Equivalent Circuit (cont) Pin No. Pin Name Equivalent Circuit XRST 14 CLK 15 DATA 16 XLT 17 FOK 18 MIRR 19 MIRH 20 DFT Rev.1, Apr. 1997, page 2.5k 10k 20k 20k V CC 10k 100k V CC 20k Function FSA amplifier output monitor ...
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... V CC 40k 4k 40k GND V CC 20k HA12220F Function Defect envelope hold signal output AGC amplifier output Capacitor connection for AGC Capacitor connection for AGC Capacitor connection for reference voltage ripple filter Capacitor connection for ripple filter V CC Rev.1, Apr. 1997, page ...
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... HA12220F Operation Control by Serial Data The IC’s internal switches can be operated by sending control data from the HD49250. The signal timing is shown in figure 1, and the control commands are listed in table 1 and 2. Pin 15 DATA Pin 14 CLK Pin 16 XLT Figure 1 Timing Diagram for Serial Data Control Signals from the HD49250 are input at pins ...
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... XLT 16 HD49250 IIL DATA 15 HD49250 Interface XRST CLK 13 14 -COM HD49250 Figure 2 Serial Data Control HA12220F Rev.1, Apr. 1997, page ...
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... HA12220F Table 1 Serial Data Control Command 1 D7D6D5 Focus error gain CD-RW Focus error offset Variable resistor BAL for tracking error EF balance Note: 1. Both tracking error and focus error gains are increased by 12dB. The RFAGC block gain is also increased by 12dB. ...
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... Stand-by FOK Vth Vth 1 1 –12dB 0 1 –6dB 0 0 0dB 1 0 Prohibit SC4 SC3 SC2 HA12220F Note Gain (dB) 0 –4 –8 +7.9 +4 APC ON 0 Stand-by mode is cleared by setting XRST on. SC1 0 *2 Rev.1, Apr. 1997, page ...
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... HA12220F RF Amplifiers The output from PDIC is summed by RFS amplifier. Figure 4 shows the equivalent circuit for the EQ block in figure 3. The peaking characteristics can be changed with 4-bit data from the HD49250. On resistance of SC1 to SC4 are 600 Typ. Figure 4 RFS Amplifier Equalizer Equivalent Circuit The RFS amplifier output is input to the AGC amplifier internally in the IC ...
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... This circuit is for the Psub laser diode. This circuit is turned on or off by 1-bit data from the HD49250. BUF 5p – 600k FOK 120k – + FOK 120k + – FSA 120k CI 120k Figure 6 FOK Detection MD 6 APC Figure 7 APC HA12220F 11 -COM DAC 17 10 -COM ADC Rev.1, Apr. 1997, page ...
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... HA12220F Focus Error Amplifiers The FE amplifier adds and subtracts the output from the PDIC. FVR2 is a variable resistor used to increase the gain by 12dB in CD-RW mode. This variable resistor is set by 1-bit data from the HD49250. FVR is a variable resistor that changes the focus error gain over the range –8 to +8dB in ±4dB steps. This variable resistor is set by 3-bit data from the HD49250. An offset of between – ...
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... TLPF switches the tracking error cut-off frequency. The TE output cut-off frequency is set to either 30, 60, 100, or 200kHz (Typ) by 2-bit data from the HD49250. TR1 + TR1 – 4 BAL 1.2p TR2 + TR2 – 5 400k 1.2p Figure 11 Mirror Detection Waveform TE TVR + TLPF + – – TVR Figure 12 Tracking Error Amplifiers HA12220F TA + – TVR2 Gain=8dB Typ 8 TE Rev.1, Apr. 1997, page ...
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... HA12220F Bias, Reference Voltage Pin 26 is for a bypass capacitor to eliminate noise from the IC’s internal bias circuits. Connect a capacitor to pin 25 to remove the ripple component from the reference voltage. The IC’s internal reference voltage is connected internally. Rev.1, Apr. 1997, page ...
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... Absolute Maximum Rating (Ta=25°C) Item Power supply voltage Power dissipation Operating temperature Storage temperature Note: Recommended operating power supply voltage : 5V ± 0.5V Symbol Rating 400 T Topr –20 to +75 Tstg –55 to +125 HA12220F Unit V mW °C °C Rev.1, Apr. 1997, page ...
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... HA12220F Electrical Characteristics (Ta = 25°C, V Item Quiescent current 1 Quiescent current 2 Reference voltage 1 Focus error Offset voltage * amp. Max output voltage H 1 Max output voltage L 1 Max output voltage H 2 Max output voltage L 2 Voltage gain 1 Voltage gain 2 1 Tracking Offset voltage * error amp ...
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... MHz AGC2 F — 30 — MHz AGC3 F — 30 — MHz AGC4 HA12220F Application Test Conditions Terminal S28, S1, S2, S3, 20 S50, S23 S28, S1, S2, S3, 18 S50, S23 8 mode 13, 14, 15 S28, S50 200kHz 22 0.4Vpp ± 6dB input S1, S50 200kHz 0.4Vpp ± 6dB input S2, S50 200kHz 0.4Vpp ± ...
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... HA12220F Test Circuit S28 BIAS – S51 V51 S50 0.1 VIN50 TR1 S4 + TVR – 4 390k BAL TR2 S5 + TVR – 5 390k 560 6 APC 7 2SB 561C S8a S8b 2k 20k 2k Rev.1, Apr. 1997, page V23 S23 1 0 GND ...
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... Package Dimensions 9.0 ± 0 0.32 ± 0.08 0.30 ± 0.06 0.575 2.25 ± 0.1 7 0.13 M 0.575 0.95 ± 0.10 0.50 ± 0.10 0.10 Hitachi Code JEDEC Code EIAJ Code Weight HA12220F Unit: mm 1.0 0˚– 8˚ FP-28TB — — 0.19 g Rev.1, Apr. 1997, page ...
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... HA12220F Disclaimer 1. Hitachi neither warrants nor grants licenses of any rights of Hitachi’s or any third party’s patent, copyright, trademark, or other intellectual property rights for information contained in this document. Hitachi bears no responsibility for problems that may arise with third party’s rights, including intellectual property rights, in connection with use of the information contained in this document ...