ELM14570GA

ELM14570GA IF IC for communication equipments
■General description
ELM14570GA is a wide band IF IC with a maximum IF frequency band of 15 MHz. It includes an IF limiter
amplifier, RSSI and Detector. ELM14570GA is available in the very small SON8-3×3 package.
■Features
■Application
• Wide operating voltage
• Wide band demodulator
• Very small package
: 1.8V to 8.5V
: 1MHz
: SON8-3×3
• Communication equipments
■Maximum absolute ratings
Parameter
Supply voltage
Operating voltage range
IF limiter operating frequency range
Demodulation operating frequency range
Power dissipation
Operating temperature
Storage temperature
Symbol
Vcc
Vop
Fif
Fdb
Pd
Top
Tstg
Limit
10.0
1.8 to 8.5
3 to 15
to 1
200
-40 to +85
-55 to +150
Unit
V
V
MHz
MHz
mW
°C
°C
■Selection guide
ELM14570GA-x
Symbol
a
Product name
b
Taping direction
14570GA
S: Refer to PKG file
N: Refer to PKG file
ELM14570GA - x
↑
↑
a
b
■Pin configuration /Block diagram
SON8-3×3(TOP VIEW)
Pin No.
1
2
3
4
5
6
7
8
IF
Limiter
RSSI
4-1
Pin name
DET OUT
QUAD COIL
VCC
RSSI OUT
IF IN
GND
DECOUPLE
DECOUPLE
Rev.1.1
ELM14570GA IF IC for communication equipments
IN
D
IF
N
G
D
D
EC
EC
O
O
U
PL
E
U
PL
E
■Block diagram
GND
IF
Limiter
Det
RSSI
T
O
U
CC
SI
V
CO
RS
D
A
Q
U
D
ET
O
U
T
IL
Vcc
■Electrical characteristics
Parameter
Supply current
FM demodulation
Output voltage
Total harmonic distortion
Signal-to-noise ratio
Limiter input resistance
RSSI
RSSI output voltage 1
RSSI output voltage 2
RSSI output voltage 3
RSSI output voltage 4
Vcc=3V, Ta=25°C, Fin=10.7MHz, Fm=1kHz, dev.=±50kHz
Symbol
Condition
Min.
Typ.
Max.
Unit
Icc
No input
2.9
4.1
mA
Vout
THD
S/N
Rlin
-30 dBm input
-30 dBm input
-30 dBm input
DC measurement
60
Vrssi1 No input
Vrssi2 -60 dBm non-mod. input
Vrssi3 -30 dBm non-mod. input
Vrssi4
0 dBm non-mod. input
0.00
0.20
0.80
1.20
4- 2
54
100
0.5
60
330
160
2.0
mVrms
%
dB
Ω
0.05
0.40
1.05
1.50
0.30
0.60
1.30
1.80
V
V
V
V
Rev.1.1
ELM14570GA IF IC for communication equipments
■Test circuit
0.01�F
0.01�F
~
51�
0.01�F
GND
IF
Limiter
Det
RSSI
Vcc
8.2k�
2.2k�
0.01�F
0.01�F
0.01�F
Det out
Vcc
+
Rssi out
1000pF
4.7�F
■Marking
SON8-3×3
ELM14
570GA
abc
Symbol
ELM14570GA
Mark
ELM14570GA
Content
name of product
a, b, c
1 to 0 and A to Z
(I, O, X excepted)
Assembly Lot No.
4-3
Rev.1.1
ELM14570GA IF IC for communication equipments
■Typical operating characteristics
Vcc-Icc
3.5
3.2
3.0
3.1
3.0
2.5
2.0
1.5
2.9
2.8
2.7
1.0
2.6
0.5
2.5
1
2
3
4
5
6
Vcc (V)
7
8
2.4
9 10
RSSI characteristics
Top=25°C
-30 -15
0
15 30 45 60 75
Temperature (°C)
RSSI characteristics
Vcc=3.0V
2
Top=85°C
1.8
Vcc=3.0V
Top=25°C
1.2
Vcc=1.8V 1
0.8
0.6
1.6
1.4
1.4
1.2
RSSIout (V)
Vcc=8.5V
1.6
1.8
1.0
Top=-40°C
0.8
0.6
0.4
0.4
0.2
0.2
0
-90 -80 -70 -60 -50 -40 -30 -20 -10 0 10
-80 -70 -60 -50 -40 -30 -20 -10
IF-IN (dBm)
RSSIout (V)
0
Vcc=3.0V
3.3
Icc (mA)
Icc (mA)
Top-Icc
Top=25°C
4.0
0
0
IF-IN (dBm)
S curve
Vcc=3V, Vin=-30dBm, Top=25°C
Output DC voltage (V)
3.0
2.5
2.0
1.5
1.0
0.5
0
9.5
9.9
10.3
10.7
11.1
11.5
Input frequency (MHz)
11.9
4- 4
Rev.1.1