TZA1027HL/V2 View Datasheet(PDF) - Philips Electronics
Part Name
Description
Manufacturer
TZA1027HL/V2 Datasheet PDF : 16 Pages
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Philips Semiconductors
Analog current buffer for CD-R and CD-RW
systems
Preliminary specification
TZA1027
CHARACTERISTICS
VDDA = VDDD = 5 V; Tamb = 25 °C; Ii(cd) = 25 µA with x = 1LF to 4LF; Ii(sd) = 4 µA with y = A or B and z = 1LF or 2LF;
PDWN = 0; WRON = 0; HG = 0 and Ccd = Csd = 5 pF; the given maximum and minimum values are 4σ values; unless
otherwise specified. Signals available on the IC pins are upper case. Signals not visible on the IC pins are lower case.
SYMBOL
PARAMETERS
CONDITIONS
MIN. TYP. MAX. UNIT
Supplies
VDDA
VDDD
∆VDD
IDDA
analog supply voltage
digital supply voltage
difference between
VDDA and VDDD
analog supply current
IDDD
digital supply current
Detector inputs
PDWN = 1
PDWN = 1
4.5 5.0 5.5
V
4.5 5.0 5.5
V
−0.3 −
+0.3
V
−
0.1 −
mA
−
13 −
mA
−
0
−
mA
−
14 −
mA
INPUT CURRENT RANGE
Ii(cd)
central diode input current
WRON = 1
Ii(sd)
satellite diode input current
WRON = 1
INPUT VOLTAGE LEVEL
Vi(cd)
central diode input voltage level
WRON = 1
Vi(sd)
satellite diode input voltage level
WRON = 1
INPUT RESISTANCE
Ri(cd)
Ri(sd)
central diode input resistance
satellite diode input resistance
Transfer functions
WRON = 1; Ii(cd) = 1 mA
WRON = 1; Ii(cd) = 200 µA
1.0 −
75
µA
0
−
3 400
µA
0.6 −
9
µA
0
−
520
µA
2.5 2.9 3.3
V
2.6 3.0 3.4
V
1.6 1.9 2.2
V
1.7 2.0 2.3
V
−
420 −
Ω
−
220 −
Ω
−
620 −
Ω
−
370 −
Ω
SERVO OUTPUTS CD
Gcd
servo central detector gain
Gmm
Bcd
gain mismatch
bandwidth
−0.93 −1
HG = 1
−2.8 −3
WRON = 1
−0.94 −1
WRON = 1; HG = 1
−0.93 −1
3σ
−
−
33 44
HG = 1; Ii(cd) = 6 µA
WRON = 1; Ii(cd) = 1000 µA
18 22
150 230
WRON = 1; HG = 1; Ii(cd) = 250 µA 100 130
−1.07
−3.2
−1.06
−1.07
3
−
−
−
−
%
MHz
MHz
MHz
MHz
1999 Sep 17
7
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