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參數資料
| 型號： | TK14588 |
| 廠商： | TOKO Inc. |
| 英文描述： | FM IF IC |
| 中文描述： | 調頻中頻集成電路 |
| 文件頁數： | 17/20頁 |
| 文件大?。?/td> | 233K |
| 代理商： | TK14588 |
January 2000 TOKO, Inc.
Page 17
TK14588
CIRCUIT DESCRIPTION (CONT.)
Comparator:
The TK14588V contains a general purpose high-speed data comparator for the base band processing. Because the input
stage is composed of PNP transistors, it is possible to operate from a minimum voltage of 0.2 V to the supply voltage minus
0.9 V (see Figure 10).
Moreover, as the HFE of this PNP transistor is over 100, the bias current is below 0.01
μ
A (this is below 10% of the value
of the general products on the market using lateral PNP transistor at input stage).
FIGURE 8 - EXAMPLE OF USING EXTERNAL REFERENCE SOURCE
Demodulated
Output Current
Demodulated
Output Voltage
VOUT
Vref
I to V convertor
io
VB
R1
C1
Demodulated Output Voltage V
OUT
= VB
±
R1 x io
Demodulated Bandwidth
1/gm is about 50 k
that is the output resistance of the
multiplier.
Pin 11 is disconnected.
Fc =
1
2
π
C1(1/gm)
Demodulated
Output Voltage
VOUT
R1
C1
R2
VCC
R1 = R2
Demodulated Output Voltage V
OUT
= V
CC
/2
±
R1 x io
Demodulated Bandwidth
1/gm is about 50 k
that is the output resistance of the
multiplier.
Pin 11 is disconnected.
Fc =
1
2
π
C1(1/gm)
FIGURE 9 - EXAMPLE OF DIVIDING SUPPLY VOLTAGE INTO HALVES BY THE RESISTORS
INPUT STAGE
FIGURE 10 - COMPARATOR INPUT STAGE
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PDF描述 |
|---|---|
| TK14588V | FM IF IC |
| TK14588VTL | FM IF IC |
| TK15121MTL | Grand Earthing System Audio Signal Mute IC |
| TK15121 | Grand Earthing System Audio Signal Mute IC |
| TK15121M | Grand Earthing System Audio Signal Mute IC |
相關代理商/技術參數 |
參數描述 |
|---|---|
| TK14588V | 制造商:TOKO 制造商全稱:TOKO, Inc 功能描述:FM IF IC |
| TK14588V/14588 | 制造商:TOKO 制造商全稱:TOKO, Inc 功能描述:FM IF IC |
| TK14588VTL | 制造商:TOKO 制造商全稱:TOKO, Inc 功能描述:FM IF IC |
| TK145J | 制造商:Panasonic Electric Works 功能描述: |
| TK14600 | 制造商:TOKO 制造商全稱:TOKO, Inc 功能描述:NARROW BAND FM IF AMPLIFIER |
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