S1M8656 Samsung Semiconductor, Inc., S1M8656 Datasheet - Page 8

• Manufacturer Part Number: S1M8656
• Description: RX if / Bba With Agc
• Manufacturer: Samsung Semiconductor, Inc.

S1M8656A
AC CHARACTERISTICS (Continued)
8
FM Performance
I/Q gain mismatch Gain mismatch between the I and Q signals
Offset adjust input
over temperature
Offset gain slope
jammer desense
Crosstalk FM to
AGC gain slope
Input sensitivity
Maximum input
AGC gain error
Characteristic
P1dB IF input
Gain flatness
Single-tone
attenuation
impedance
I/Q Phase
mismatch
Out-band
CDMA
signal
level
Overall gain reduction due to one jammer.
The in-band signal at -97dBm (control the
AGC control voltage to 0.5*F/S)and the
jammer signal at 900kHz and -57dBm are
simultaneously input. The gain reduces if the
input/output range is small in the BBA.
AGC gain. The input signal level showing 1dB
difference from its idealistic linear line when
the output signal increase, which results from
the input exceeding the output and input
range, starts to saturate.
leakage ratio between CDMA input and FM
input.
Amount of code change of the voltage ADC
output at the I/Q offset control
between 1kHz to 615kHz.
Phase mismatch between the I and Q signals
between 1kHz to 615kHz.
Amount of gain change along I and Q paths
between 1kHz to 615kHz
Maximum AGC gain. Control input signal so
that ADC outputs 0.5*F/S. The current source
impedance is 500
connecting a 1.2k
differential input.
Minimum AGC gain. Control input signal so
that ADC outputs 0.5*F/S. The current source
impedance is 500
connecting a 1.2k
differential input.
PDM is controlled to 3.3V and finds the
differential gain between the control voltage of
1V and 2V.
The difference in gain slope between when the
temperature is -30 C and +85 C.
900kHz
1.2MHz
Test Conditions
and matched by
resistance to the
and matched by
resistance to the
-
GSLOPE
Symbol
ATC12
GOFS
VMAX
GVAR
CTFC
VSEN
Jdsen
ATC9
P1dB
Gmis
Pmis
Zoff
Gft
-98.3
Min
100
-19
-10
30
46
48
33
-1
-1
-3
-
-
-
Typ
250
45
-
-
-
-
-
-
-
-
-
RX IF/BBA WITH AGC
Max
-8.3
1.0
10
53
1
1
3
-
-
-
-
-
-
%FS/V
dB/V
dBm
dBm
dBm
Unit
Deg
dB
dB
k
dB
dB
dB
dB
dB