BA1604 Rohm Semiconductor, BA1604 Datasheet

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BA1604

Manufacturer Part Number
BA1604
Description
IC TONE DECODER PLL DIP-8
Manufacturer
Rohm Semiconductor
Datasheet

Specifications of BA1604

Function
Tone Decoder, PLL
Number Of Circuits
1
Voltage - Supply
4.75 V ~ 9 V
Current - Supply
10mA
Power (watts)
350mW
Operating Temperature
-40°C ~ 85°C
Mounting Type
Through Hole
Package / Case
8-DIP (0.300", 7.62mm)
Includes
Noise Rejection
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Interface
-

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The BA1604 and BA1604F are tone decoder ICs that enable the frequency to be selected in precise detail, using a PLL
system. These ICs are configured of a PLL circuit, a detection circuit, a voltage comparator circuit and an output logic
drive circuit.
When the input signal is within the transmission range of the circuit, PLL is synchronized (locked) to the input signal.
At this point, the output voltage of the decoder drops, and the change turns on the transistors for the voltage comparator
and output logic drive circuits. A load of up to 100mA can be driven.The center frequency (f
the mobile oscillation frequency of the current control oscillator. This frequency is determined by selecting a CR con-
nected to Pins 5 and 6.
FApplications
Telephones
Data communication systems
Remote control systems
FFeatures
1) The detection bandwidth can be varied independent-
2) The output circuit can withstand a load current of up
3) The center frequency offers a high level of stability.
4) High out-of-band signal and noise rejection capabili-
FBlock diagram
212
PLL tone decoder IC
BA1604 / BA1604F
Communication ICs
ly between 0 and 14%.
to 100mA, and is directly coupled to the logic circuit.
ty.
5) Frequency can be changed over a range of 20 : 1 us-
6) Compatible with EXAR XR-567 and Signetics
ing an external resistor.
NE567.
0
) of the decoder is set by

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BA1604 Summary of contents

Page 1

... PLL tone decoder IC BA1604 / BA1604F The BA1604 and BA1604F are tone decoder ICs that enable the frequency to be selected in precise detail, using a PLL system. These ICs are configured of a PLL circuit, a detection circuit, a voltage comparator circuit and an output logic drive circuit. ...

Page 2

... Communication ICs FAbsolute maximum ratings (Ta=25_C) FRecommended operating conditions (Ta=25_C) FElectrical characteristics (unless otherwise noted, Ta=25_C, V BA1604 / BA1604F =5V) CC 213 ...

Page 3

... Pin 8 and V when an in-band input signal is received, dropping the to 0 potential at Pin 8 to less than 1V (0.6V Typ.). The output can also drive a load connected to a separate supply volt- age 20V. BA1604 / BA1604F : Output filter , connected between Pin 1 and the ground determined ...

Page 4

... IC recommended to connect a variable resis- tor between pins 5 and 6 and align the central frequency of each component in order to prevent shifting of the cen- tral frequency caused by fluctuations in the IC, capacitor, or resistor. FElectrical characteristic curves BA1604 / BA1604F 215 ...

Page 5

... Communication ICs FExternal dimensions (Units: mm) 216 BA1604 / BA1604F ...

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