MRD520A Datasheet, PDF (4/9 Pages) List of Unclassifed Manufacturers – 1.2um CMOS integrated circuit for purpose of amplification

Uniform Industrial Corp.
MRD520A
Dual Channel F2F Decoder IC
4. PIN DESCRIPTION
1 GND
2 SEN1N
3 SEN1P
4 OP1OUT
5 OP2NIN
6 OP2OUT
7 OP3OUT
8 OP6OUT
9 OP5OUT
10 OP5NIN
11 OP4OUT
12 SEN2P
13 SEN2N
14 VREFIN
15 VDD
16 ADJ2
17 OUT2
18 OUT2X
19 OCK2
20 OSCI
21 OSCO
22 IBS
23 OCK1
24 OUT1X
25 OUT1
26 CLS
27 ADJ1
28 RES
Input from magnetic head
Input from magnetic head
Amplifier OP1 output
Amplifier OP2 - input
Amplifier OP2 output
Amplifier OP3 output
Amplifier OP6 output
Amplifier OP5 output
Amplifier OP5 - input
Amplifier OP4 output
Amplifier OP4 + input
Amplifier OP4 - input
Reference voltage for analog signal processing
Adjust read out clock pulse width for F2F channel 2
Positive read out data for F2F channel 2
Negative read out data for F2F channel 2
Negative read out clock for F2F channel 2
RC oscillator input
RC oscillator output
Select ignore leading bit, “LOW” for 4 bits and “HIGH” for 8 bits
Negative read out clock for F2F channel 1
Negative read out data for F2F channel 1
Positive read out data for F2F channel 1
Card Loading Signal output, “LOW” after ignore bits,
“HIGH” if no input for around 12.5mS
Adjust read out clock pulse width for F2F channel 1
Power on reset, LOW reset the logic circuit and enter idle mode.
Approx. 10mS after HIGH level to normal function
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October, 1997