TZA1000 데이터 시트보기 (PDF) - Philips Electronics
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TZA1000 Datasheet PDF : 24 Pages
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Philips Semiconductors
QIC read-write amplifier
Preliminary specification
TZA1000
SYMBOL
Zi
VI(6,7)
THD
Gv(servo)
Vn(i)(eq)(servo)
VI(1,3))
Isense
Isense(max)
∆VVDD3-ISENSE
RESDAC(SENSE)
Zo(sense)
Gv(FB)
B(-3dB)
fcoupling(FBamp)
Ibias
VO(23,24)
∆VBIASA-BIASB
RESDAC(BIAS)
VO(18,19)
∆VOO(18,19)
Vo(rms)(18,19)
Io
VO(AGCL)
VO(AGCH)
PARAMETER
CONDITIONS
MIN.
input impedance
1
DC input voltage; pins 6 and 7
1.2
total harmonic distortion
at 34 and 40 dB gain −
settings; Vo(p-p) = 1 V
servo preamplifier voltage gain WX-WY to output
62
equivalent input noise voltage: Zsource = 0 Ω
−
servo pre-amp
DC input voltage pins 1 and 3
2.4
sense current
Rref = 430 Ω; S = 64;
note 3
14.6
maximum sense current
all conditions; note 4 33
voltage difference between
1.6
VDD3 and ISENSE
(pins 9 and 8)
sense DAC resolution
−
output impedance of sense f = 1 kHz;
10
current source
Io(sen) = 16 mA
FB amplifier voltage gain
11.5
−3 dB bandwidth of FB
−
amplifier
−3 dB AC coupling of FB
−
amplifier
bias current amplitude
(peak-to-peak)
ENFB1 = 0; ENFB0 = 1 −10
ENFB1 = 1; ENFB0 = 0 0
ENFB1 = ENFB0 = 1 −10
DC voltage level of FB outputs B = 0; see Table 3
1.6
(pins 23 and 24)
voltage difference between B = 31; see Table 3; 1.4
BIASA and BIASB
bias load 88 Ω
(pins 23 and 24) at maximum
DC bias voltage
bias DAC resolution
−
read amplifier DC output
2.4
voltage (pins 18 and 19)
read amplifier DC offset
−
voltage (voltage change at
pins 18 and 19)
output voltage (RMS value;
−
pins 18 and 19)
guaranteed output current
1.5
lower AGC detection voltage
2.15
level at OUTB
upper AGC detection voltage
2.75
level at OUTB
TYP.
1.84
1.3
−
66
1.8
2.5
15.2
−
−
7
−
13
5
3
−
−
−
1.8
1.52
5
2.5
−
−
−
2.2
2.8
MAX.
4
1.4
−40
UNIT
kΩ
V
dB
70
dB
2.8
nV/√Hz
2.6
V
15.8
mA
−
mA
13.2
V
−
bits
−
kΩ
14.5
dB
−
MHz
−
kHz
+10
mA
+9
mA
+20
mA
2.0
V
1.6
V
−
bits
2.6
V
100
mV
0.5
V
−
mA
2.25
V
2.85
V
1998 Mar 17
15
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