Samsung KA8513B-C Datasheet
FM IF RECEIVER KA8513B/C
INTRODUCTION
The KA8513B is designed for FM IF Detection on the pager set. It
includes a voltage regulator, low battery detection circuitry, Mixer,
Oscillator, FSK comparator and limiting IF Amplifier.
FEATURES
• Operating voltage range: 1.0 ~ 4.0V
• Typical supply current: 1.1mA at 1.4V
• Low battery detection circuit (alarm function): 1.05V
• Voltage regulator: Vreg = 1.0V (Typ.)
• Mixer operating frequency: 10 ~ 50MHz
• High transmitting rate: 1200bps / 2400bps
• FSK Data reception
• Package type: 20-SSOP (0.65mm)
ORDERING INFORMATION
20−SSOP−225
#1
Device Package Operating Temperature
KA8513B/C 20-SSOP-225 −20°C ~ +70°C
BLOCK DIAGRAM
MI GND REGO
20 19 18 17 16 15 14 13 12 11
2’nd
MIX
X-tal
Osc
1 2 3 4 5 6 7 8 9 10
OSCI OSCO MO Vcc LI LD FSKI IFO QD RAO
REGC
1.0V Reg
AO FSKO QC BSC LPFO LPFI
Alarm
Limiting IF
Amplifier
FSK
COMP.
Quick
Charge
filter AMP
audio AMP
Quad
Detector
1
KA8513B FM IF RECEIVER
PIN CONFIGURATION
OSCI
OSCO
MO
Vcc
LI
LD
FSKI
IFO
QD
RAO
1
2
3
4
KA8513B
5
6
7
8
9
10
20
19
`18
17
16
15
14
13
12
11
MI
GND
REGO
REGC
AO
FSKO
QC
BSC
LPFO
LPFI
2
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