cxa3171n Sony Electronics, cxa3171n Datasheet
cxa3171n
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cxa3171n Summary of contents
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... Read/Write Amplifier for three terminal MIG Head of Hard Disk Drive For the availability of this product, please contact the sales office. Description The CXA3171N is a Read/Write Amplifier for the special three terminal MIG head of hard disk drive and designed to handle channel heads. ...
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... H1Y 7 H2X AMP 8 H2C DRIVER 9 H2Y 10 H3X AMP 11 H3C DRIVER 12 H3Y MODE CONTROL WRITE CURRENT SOURCE AMP HEAD SELECT WRITE UNSAFE DETECTOR POWER ON/OFF DETECTOR IC PROTECTOR —2— CXA3171N 24 GND 23 R RDY 20 RDX 19 HS0 18 HS1 WDX 15 WDY 14 WUS/ ...
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... H3Y WUS/ WDY 16 WDX Equivalent circuit V CC GND V CC GND V CC GND —3— CXA3171N Description Head. 4 channels provided. Write unsafe detection output / Servo Enable signal input. Differential P-ECL write data input power supply. ...
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... CC 2.1V GND V CC GND GND —4— CXA3171N Description Head select signal input. Selects one of 4 heads according to Table 2. Read/Write signal input At “High” : Read, at “Low” : Write. Read Amplifier output. A setting resistor for the write current value is connected between this pin and GND. ...
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... the time required for Write current to reach from the same time required reach 10 % from µ —9— CXA3171N =20 mA, L (Head W H Refer to Fig Fig. 4 Min. Typ. Max. Unit 9 Vp-p 130 150 ns 180 220 ns 100 200 ns 1 ...
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... A 0.1µ 0.1µ 0.1µ SG1 1k 1k 1µ 1µ 1µH L 1µ —10— CXA3171N 1µ SG3 a b S10 5.1k PG SG4 S12 S11 ...
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... Timing Chart 1 WDX WDY R RDX RDY Timing Chart 2 WDX WDY 10% WUS T SA2 50% 90% 10 90% Fig. 3 90% 90% 10 50% Fig. 4 —11— CXA3171N 10 SA1 50% ...
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... While maintaing step (2) and (3) above make R/W low, placing the device in servo write mode. WUS/SE HS0 HS1 X See Table 2 X See Table 3 Table 1. Mode selection HS0 HS1 Head Table 2. Head selection to WUS/SE. SEH —12— CXA3171N Mode Write Read Servo Write ...
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... ON/OFF detector, in which case the recording and playback TH functions are prohibited. When V CC HS0 Table 3. Head selection in Servo Write mode rises above V , the prohibition of these functions is released. TH HS1 Head —13— CXA3171N 10 MHz) falls below the CC ...
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... L 1µH L 1µ —14— CXA3171N +5V 1µ 5. 1µH H ...
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... VFB must be more than 2 V. When V frequency becomes more than 1 MHz. The normal operating area of write unsafe detection circuit is changed by head inductance, head DC resistance, write current and other < possible that Write unsafe detection maximum FB —15— CXA3171N =1.4V GND ...
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... = µ = 50% 50% 50 Pin 22 —16— CXA3171N V =5V, Ta=25 °C CC Min. Typ. Max. Unit 4 300 420 545 6 520 1200 2400 50 0.2 mAp-p –0.5 0 ...
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... ON OFF 3.8 3.6 – Ambient temperature Ta [°C] Normalized write current vs. Ambient temperature Ta=25°C 1.04 R =3.3k WC 1.02 1 0.98 0.96 –25 0 Ambient temperature Ta [°C] Normalized read amplifier voltage gain vs. Ambient temperature Ta=25°C 1.04 1.02 1 0.98 0.96 –25 0 Ambient temperature Ta [°C] —17— CXA3171N V = =3. = ...
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... This product uses S-PdPPF (Sony Spec.-Palladium Pre-Plated Lead Frame). 24PIN SSOP(PLASTIC) 7.8 ± 0 0.13 M 0.65 0.1 ± 0.1 0° to 10° DETAIL A PACKAGE STRUCTURE PACKAGE MATERIAL SSOP-24P-L01 LEAD TREATMENT LEAD MATERIAL SSOP024-P-0056 PACKAGE MASS —18— CXA3171N + 0.2 1.25 – 0.1 0 0.05 0.15 – 0.02 EPOXY RESIN SOLDER/PALLADIUM PLATING 42/COPPER ALLOY 0.1g ...