- 您现在的位置：买卖IC网 > PDF目录97719 > TA7715P VOLTAGE-FREQUENCY CONVERTER, PDIP16 PDF资料下载
参数资料
| 型号： | TA7715P |
| 元件分类： | 模拟专用变换器 |
| 英文描述： | VOLTAGE-FREQUENCY CONVERTER, PDIP16 |
| 封装： | 0.300 INCH, 2.54 MM PITCH, PLASTIC, DIP-16 |
| 文件页数： | 2/9页 |
| 文件大小： | 336K |
| 代理商： | TA7715P |
TA7715P
2001-08-27
2
PIN FUNCTION
PIN No.
SYMBOL
PIN FUNCTION
1
CO
Capacitor connection terminal for setting time constans (for F / V Amp.)
2
SH
Schmitt Amp. output terminal
3
CHf
Capacitor connection terminal forgetting time constants (for F / V buffer Amp.)
4
Ct
Capacitor connection terminal for setting time constants
5
RP
Phase control signal output terminal
6
Rt
Resistor connection terminal for setting time constants
7
Vref2
Internal reference voltage output terminal
8
SP
Phase control signal input terminal
9
VCC
Power supply input terminal
10
VIN
Buffer Amp. negative input terminal
11
VOUT
Buffer Amp. output terminal
12
Vref1
F / V Amp. reference voltage output terminal
13
FGIN
FG Amp. negativeside input terminal
14
FGOUT
FG Amp. output terminal
15
FGref
FG Amp. positiveside input terminal
16
GND
GND terminal
OPERATION
TA7715P outputs control signals (F / V conversion output) generated by the sample and hold (S / H) circuit for
each cycle of the frequency signal output.
Consequently, TA7715P offers a superior response to methods counting the monostable multivibrator cycles or
the input signal cycles to drive a D / A converter and output a latched result.
Fig.1 shows the input FG amp circuit, which amplifies the weak FG signal.
The Schmitt circuit in the next stage has the required hysteresis for wave shaping and generates the signals
needed for S / H.
S / H operations are based on the waveform shaped FG output from the SH terminal (pin (2)). That is, the time
constant capacitor Ct (pin (4)) is momentarily charged to the internal reference voltage 10VBE when the SH
pulse (pin (2)) falls.
The hold pulse and reset pulse required for the S / H operation are generated by the voltage of this capacitor.
The hold pulse is output until the voltage falls to 9VBE. The reset pulse is output while the voltage is falling
between 9VBE and 5VBE.
The voltage of the Ct is discharged by the constant current (IO2), which is determined by resistor Rt connected
to the Rt terminal (pin (6)).
The S / H operation is based on the hold and reset pulses generated by the changes in the Ct voltage.
First, capacitor Co, which is connected to the Co terminal (pin (1)), is momentarily charged to 10VBE by the
reset pulse and discharged by the constant current (IO3), which is determined by Rt. F / V conversion is
performed by designating the discharge time as the time from the reset pulse fall to the hold pulse rise.
相关PDF资料 |
PDF描述 |
|---|---|
| TA7765AF | AM/FM, AUDIO SINGLE CHIP RECEIVER, PDSO16 |
| TA8029S | VOLTAGE-FREQUENCY CONVERTER, 0.005 MHz, PSIP9 |
| TA8052AS | BRUSH DC MOTOR CONTROLLER, 0.3 A, PSIP7 |
| TA8141S | INFRARED, REMOTE CONTROL SUPPORT CIRCUIT, PSIP9 |
| TA8141F | INFRARED, REMOTE CONTROL SUPPORT CIRCUIT, PDSO8 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TA7733 | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:FUNCTIONAL BRIDGE DRIVER |
| TA7733F | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:FUNCTIONAL BRIDGE DRIVER |
| TA7733F/FG | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:Functional Bridge Driver |
| TA7733F_06 | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:Functional Bridge Driver |
| TA7733FG | 制造商:TOSHIBA 制造商全称:Toshiba Semiconductor 功能描述:Functional Bridge Driver |
发布紧急采购，3分钟左右您将得到回复。