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參數(shù)資料
| 型號(hào)： | TZA1027 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Analog current buffer for CD-R and CD-RW systems(應(yīng)用于CD-R 和 CD-RW系統(tǒng)的模擬電流緩沖器) |
| 中文描述： | 模擬電流緩沖的CD - R和CD - RW系統(tǒng)（應(yīng)用于的CD - R和CD - RW光碟系統(tǒng)的模擬電流緩沖器） |
| 文件頁數(shù)： | 7/16頁 |
| 文件大?。?/td> | 87K |
| 代理商： | TZA1027 |
1999 Sep 17
7
Philips Semiconductors
Preliminary specification
Analog current buffer for CD-R and CD-RW
systems
TZA1027
CHARACTERISTICS
V
DDA
= V
DDD
= 5 V; T
amb
= 25
°
C; I
i(cd)
= 25
μ
A with x = 1LF to 4LF; I
i(sd)
= 4
μ
A with y = A or B and z = 1LF or 2LF;
PDWN = 0; WRON = 0; HG = 0 and C
cd
= C
sd
= 5 pF; the given maximum and minimum values are 4
σ
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
V
DDA
V
DDD
V
DD
analog supply voltage
digital supply voltage
difference between
V
DDA
and V
DDD
analog supply current
4.5
4.5
0.3
5.0
5.0
5.5
5.5
+0.3
V
V
V
I
DDA
PDWN = 1
0.1
13
0
14
mA
mA
mA
mA
I
DDD
digital supply current
PDWN = 1
Detector inputs
I
NPUT CURRENT RANGE
I
i(cd)
central diode input current
1.0
0
0.6
0
75
3400
9
520
μ
A
μ
A
μ
A
μ
A
WRON = 1
I
i(sd)
satellite diode input current
WRON = 1
I
NPUT VOLTAGE LEVEL
V
i(cd)
central diode input voltage level
2.5
2.6
1.6
1.7
2.9
3.0
1.9
2.0
3.3
3.4
2.2
2.3
V
V
V
V
WRON = 1
V
i(sd)
satellite diode input voltage level
WRON = 1
I
NPUT RESISTANCE
R
i(cd)
central diode input resistance
420
220
620
370
WRON = 1; I
i(cd)
= 1 mA
R
i(sd)
satellite diode input resistance
WRON = 1; I
i(cd)
= 200
μ
A
Transfer functions
S
ERVO OUTPUTS CD
G
cd
servo central detector gain
0.93
2.8
0.94
0.93
33
18
150
100
1
3
1
1
44
22
230
130
1.07
3.2
1.06
1.07
3
HG = 1
WRON = 1
WRON = 1; HG = 1
3
σ
G
mm
B
cd
gain mismatch
bandwidth
%
MHz
MHz
MHz
MHz
HG = 1; I
i(cd)
= 6
μ
A
WRON = 1; I
i(cd)
= 1000
μ
A
WRON = 1; HG = 1; I
i(cd)
= 250
μ
A
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