TC9400CPD TELCOM SEMICONDUCTOR, TC9400CPD Datasheet - Page 15

• Manufacturer Part Number: TC9400CPD
• Description: IC, F/V-V/F CONVERTER, 9400, DIP14
• Manufacturer: TELCOM SEMICONDUCTOR

Specifications of TC9400CPD

• Frequency: 100kHz
• Linearity %: 0.05%
• Supply Voltage Range: ± 4V To ± 7.5V
• Digital Ic Case Style: DIP
• No. Of Pins: 14
• Operating Temperature Max: 70°C
• Operating Temperature Min: 0°C
• Package /: RoHS Compliant
• Full Scale Range: 10Hz To 100kHz
• Rohs Compliant: Yes
• Bandwidth: 100kHz
• Base Number: 9400

8.0
In F/V mode, the TC9400 output voltage will occasion-
ally be at its maximum value when power is first
applied. This condition remains until the first pulse is
applied to F
cations, this is not a problem because proper operation
begins as soon as the frequency input is applied.
FIGURE 8-1:
©
F
2002 Microchip Technology Inc.
IN
1kΩ
F/V POWER-ON RESET
IN
. In most frequency measurement appli-
POWER-ON OPERATION/RESET
1000pF
11
(a)
Threshold
Detector
TC9400
14
V
DD
100kΩ
1µF
V
DD
3
4
In some cases, however, the TC9400 output must be
zero at power-on without a frequency input. In such
cases, a capacitor connected from Pin 11 to V
usually be sufficient to pulse the TC9400 and provide a
Power-on Reset (see Figure 8-1 (a) and (b)). Where
predictable power-on operation is critical, a more com-
plicated circuit, such as Figure 8-1 (b), may be
required.
CLRA
A
V
CC
16
TC9400/9401/9402
B
CD4538
5
V
SS
8
(b)
R
2
C
1
Q
6
F
IN
DS21483B-page 15
To TC9400
DD
will