KA8513B Datasheet, PDF (1/6 Pages) Samsung semiconductor – FM IF RECEIVER

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.
20−SSOP−225
FEATURES
• Operating voltage range: 1.0 ~ 4.0V
#1
• 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
Device
KA8513B/C
Package
20-SSOP-225
Operating Temperature
−20°C ~ +70°C
BLOCK DIAGRAM
MI
GND REGO REGC
AO FSKO
QC
BSC LPFO LPFI
20
19
18
17
16
15
14
13
12
11
1.0V Reg
2’nd
MIX
FSK
COMP.
Quick
Charge
filter AMP
Alarm
audio AMP
X-tal
Osc
1
2
3
OSCI OSCO MO
Limiting IF
Amplifier
4
5
6
Vcc
LI
LD
7
FSKI
Quad
Detector
8
9
10
IFO
QD
RAO
1