tza1000 NXP Semiconductors, tza1000 Datasheet - Page 4

• Manufacturer Part Number: tza1000
• Description: Qic Read-write Amplifier
• Manufacturer: NXP Semiconductors

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WRITER
(YOKE)
HEAD
BIAS
MR
12 V
ISENSE
BIASA
BIASB
V DD3
WX
WY
INA
INB
9
8
6
7
24
23
1
3
WGATE
PREAMP
SERVO
PREAMP
10 to 100 mA
CURRENT
0 to 30 mA
13 dB
SOURCE
4/34/40 dB
CIRCUIT
SENSE
WRITE
14
10 dB
4 dB
BIAS
FB
WD
4
DAC
DAC
(I)
(I)
WDI to WD
TOGGLE
7 1-bit
7-bit
DETECTOR
Fig.1 Block diagram.
UNSAFE
TEST
WRITE
GEN
DAC
(V)
10 to 25 dB
VARIABLE
4 to 19 dB
GAIN
5-bit
V SS1
2
1 to 10 MHz
CONTROL
CIRCUIT
AGC
HPF
V SS2
16
TZA1000
22 dB
DETECTOR
LEVEL
YOKE
SIG/
REFERENCE
VOLTAGES
INTERNAL
V DD3
V DD1
1 to 10 MHz
LPF
DETECTOR
BANDGAP
CONTROL
CIRCUIT
POWER
CURRENT
REF
FAIL
REF
0 dB
MGG660
17
19
18
13
20
15
12
10
11
22
21
5
V DD1 5 V
V DD2 5 V
OUTA
OUTB
V ref
CLK
SDIO
SCLK
SDEN
HOLD
RESET
I ref