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PDF KB8527BQ Data sheet ( Hoja de datos )
| Número de pieza | KB8527BQ | |
| Descripción | 1 CHIP CLP SUBSYSTEM IC | |
| Fabricantes | Samsung | |
| Logotipo |  |
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KB8527B
1 CHIP CLP SUBSYSTEM IC
INTRODUCTION
KB8527B is a monolithic circuit which can be used in high
48 -QFP- 1010E
performance 60MHz MCA type CLP System.
The KB8527B is a subsystem IC for FM / FSK receiving syste-
ms and a complete one chip FM / FSK receiver IC for 60MHz
system. It`s feature includes receiving functions for FM / FSK
systems, a compandor to remove external noise, and PLL ( Ph-
ase Lock Loop ) of channel selection which blocks surrounding
frequency interference.
The KB8527B can be used with a wide range of FM / FSK VHF
bandwidth systems, including cordless phone, and the narrow
band voice and data sending / receiving systems.
To make applications easily and simply, pheripheral parts are
minimized.
ORDERING INFORMATION
Device
Package
Operating Temperature
FEATURES
+ KB8527BQ 48 - QFP - 1010E
+ : New product
¡ Ü Operating voltage range : 2.0V ~ 5.5V
¡ Ü Typical supply current : 13.5mA at 3.6V
¡ Ü Built - in low battery detection function ( selectable 3.45V, 3.3V, 3.0V, 2.2V, 2.1V )
¡ Ü Built - in speaker amplifier
• Built - in splatter filter
• Built - in dual conversion receiver, compandor and universal PLL
FM¡ Ü Receiver
- Complete dual coversion circuit
- Excellent input sensitivity (0.7µVrms at 20dB SINAD)
¡ Ü Compandor
- Easy gain control to use external component
- Included ALC (Automatic Level Control) circuit
- Included Mute logic
¡ Ü Universal PLL
- RX (TX) divided counter range : 1/16 ~ 1/16383
- Reference frequency divided counter range : 1/16 ~ 1/4095
- Lock detector signal output
- Serial interface with MICOM for controlling each block
-20oC ~ + 70oC
1 page  
KB8527B
1 CHIP CLP SUBSYSTEM IC
Pin No
12
Symbol
CRC
Description
Converts waveform from the full wave rectifier to DC element at the rectifier block
of Compressor. ( RC = 33 msec )
13
CPI -
Pre - amp inverting input terminal of Compressor.
Adjusts the negative feedback loop gain. ( in application, gain is 5 )
14
CPI +
Pre - amp non - inverting input terminal of Compressor.
Used as an input terminal for voice signals.
15
GND
Ground.
(COMP)
Ground of Compandor.
16 Vcc Supply voltage.
(COMP)
Power supply terminal of Compandor.
Output terminal of speaker amp 2.
17
SAO 2
This signal is the same as SAO1 output, but phase difference is 180o for SAO1.
DC voltage level is ( Vcc - 0.7V ) / 2.
18
SAO 1
Output terminal of Speaker amp 1.
DC voltage level is ( Vcc - 0.7V ) / 2.
19 SAI Speaker Amp 1 input terminal.
Between this terminal and Expander output terminal, uses a AC coupled.
20 EO Output terminal of Expander, from which a regenerated voice signals are emitted.
Converts waveform from the full wave rectifier to DC element at the rectifier block
21
ERC
of Expander. ( RC = 33 msec )
22
EPI -
Pre - amp inverting input terminal of Expander.
Adjusts the negative feedback loop gain. ( in application, gain is 5 )
Reference current input terminal of Automatic Level Control ( ALC) ; Adjusts THD
of compressor output voltage to less than 3 % or limites the frequency deviation
23 ALC of TX if the input is higher than a certain level. The ALC circuit may be turned
off depending on the ALC reference current or the magnitude of output voltage
may be limited if it is higher than a certain level. ( Iref = 8uA, Ralc = 120KΩ)
5 Page 
KB8527B
1 CHIP CLP SUBSYSTEM IC
ELECTRICAL CHARACTERISTICS (Continued)
Characteristic
Detector Output
Distortion
Detector Output
Resistance
Detector Output DC
Voltage Change Ratio
Meter Drive Slope
Symbol
Test Conditions
THDDET RFin = 1mVrms
RO(DET)
RFin = 1mVrms
∆ VO(DET) RFin = 1mVrms
MDS
Min Typ Max
- 1.5 2.5
Unit
%
- 1.2 -
KΩ
- 0.15 0.23 V/KHz
70 100 135 nA/dB
First Mixer Input
Resistance
First Mixer Input
Capacitance
Limiter Input Sensitivity
RI(1M)
fc = 50MHz
CI(1M)
VI(LIM)
fc = 50MHz
fc = 455KHz, 20dB SINAD
500
-
-
Second Mixer
Input Sensitivity
SV(2M)
fc = 10.7MHz, 20dB SINAD
-
First Mixer 3rd Order
Sensitivity
3RD
-
Low Battery Detector
AM Rejection Ratio
LBD
AMRR
LBD0 ~ LBD3 = 0 ( Default )
Only LBD2 = 0
Only LBD1 = 0
Only LBD3 = 0
LBD0 ~ LBD3 = 1
-0.15
- 0.1
RFin = 1mVrms ~ 10mVrms
AM MOD = 30%
25
Compressor
( Vcc = 3.6V, fc = 1KHz, Ta = 25oC, unless otherwise specified )
Characteristic
Symbol
Test Conditions
Min
690 -
Ω
7.2 10
100 250
pF
µV rms
10 25 µV rms
-22 -
dBm
3.45
3.3 0.1
3.0
2.2
2.1 0.075
35 -
V
dB
Typ Max
Unit
Reference Voltage
Standard Output Voltage
Compressor Gain
Difference
VREF
Vo(com)
∆ GV1(COM)
∆ GV2(COM)
No Signal
Vinc = 13mVrms
Vinc = -20dB
Vinc = -40dB
0dB
0.9 1.0 1.1
V
255 300 345 mVrms
-1.0 -0.5
-2.0 -1.0
0
0
dB
dB
11 Page | ||
| Páginas | Total 21 Páginas | |
| PDF Descargar | [ Datasheet KB8527BQ.PDF ] | |
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