BU8877 Rohm, BU8877 Datasheet
BU8877
Manufacturer Part Number
BU8877
Description
Manufacturer
Rohm
Datasheet
1.BU8877.pdf
(2 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
BU8877
Manufacturer:
ROHM/罗姆
Quantity:
20 000
Recommended Operating Conditions
Description
Features
Applications
Absolute Maximum Ratings
*1
*2
Operating temperature range
Storage temperature range
Power supply voltage
Power
dissipation
Power supply voltage
1) No malfunction by voice signal
2) Dual tone detection (350Hz and 440Hz)
3) Wide dynamic range
4) 3.58MHz crystal resonator
The BU8877 and BU8877F are ICs that
detect dial tones from a call progress signal
used in the telephone lines. The ICs detect
dual signals 350Hz(from 345 to 355Hz)and
440Hz(from 435 to 445Hz).
Telephone, Codeless telephone and Facsimile for the U.S.
Derating:8.0mW/˚C for operation above Ta=25˚C
Derating:3.0mW/˚C for operation above Ta=25˚C
Call Progress Tone Decoder for Telephone
Parameter
Parameter
SOP16
DIP8
Symbol
(Ta=25˚C)
Topr
Tstg
V
Pd
CC
BU8877/F
Symbol
V
DD
(Ta=25
˚
2.85
C)
Min.
-30
-55
Limits
800
300
7
~
~
+80
+125
Typ.
*1
*2
-
Dimension
Max.
5.25
BU8877
BU8877F
Unit
mW
˚C
˚C
V
Unit
V
(Units:mm)
DIP8
SOP16
December, 1999
99W121A
Related parts for BU8877
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
CHIP RESISTOR (ROHM) 0402 1% 750 OHM
Manufacturer:
Rohm Semiconductor
Part Number:
Description:
Manufacturer:
Rohm Semiconductor
Datasheet:
Part Number:
Description:
Manufacturer:
Rohm Semiconductor
Datasheet:
Part Number:
Description:
Manufacturer:
Rohm Semiconductor
Datasheet:
Part Number:
Description:
Manufacturer:
Rohm Semiconductor
Datasheet:
Part Number:
Description:
Manufacturer:
Rohm Semiconductor
Datasheet:
Part Number:
Description:
Manufacturer:
Rohm Semiconductor
Datasheet:
Part Number:
Description:
Manufacturer:
Rohm Semiconductor
Datasheet:
Part Number:
Description:
Manufacturer:
Rohm Semiconductor
Datasheet:
Part Number:
Description:
Manufacturer:
Rohm Semiconductor
Datasheet:
Part Number:
Description:
Manufacturer:
Rohm Semiconductor
Datasheet:
Part Number:
Description:
Manufacturer:
Rohm Semiconductor
Datasheet:
Part Number:
Description:
Manufacturer:
Rohm Semiconductor
Datasheet:
BU8877 Summary of contents
Page 1
... Call Progress Tone Decoder for Telephone Description The BU8877 and BU8877F are ICs that detect dial tones from a call progress signal used in the telephone lines. The ICs detect dual signals 350Hz(from 345 to 355Hz)and 440Hz(from 435 to 445Hz). Features 1) No malfunction by voice signal ...
Page 2
... Comparator (350Hz) AAF BPF Comparator (440Hz) CLOCK CLOCK GENERATOR Unit Conditions mA ENABLE="H"(V =5.0V) DD Input frequency: dBm Must detect frequency range dBm VRECL, VRECH are proportional dBm to VDD. Hz Input signal level: 0dBm Hz k Input frequency: 100Hz~2000Hz Timer DETECT VREF VREF BU8877/F ...