U3500BM Datasheet, PDF (4/17 Pages) TEMIC Semiconductors – Cordless Telephone Signal Processor

U3500BM
Parameters
Receiver
IF mixer, f = 10.7 MHz
Input resistance
Input capacitance
Output impedance
Gain GVMIX
Input compression point
Third-order input intercept
point
Carrier breakthrough from
internal LO (11.15 MHz) to
IF output
Carrier breakthrough from
internal LO (11.15 MHz) to
RF input
IF amplifier: RSSI
Input resistance
RSSI-sensitivity
Test Conditions / Pins
Input level 7 mV_rms
m VIF = 0 V_rms
starting from 0 increase RSSI-
v ^{level until mean of sampled}
signal at DACO is 0.2
RSSI-level = CON0
m VIF = 25.4 V_rms, f = 450 kHz
Symbol
G_MIX
Min.
2000
2.5
1200
13
–17
–9
1.6
increase RSSI level again
1
v ^{until mean of sampled signal}
at DACO is 0.2.
RSSI-level = CON1
RSSI-sensitivity =
CON1–CON0
RSSI-input voltage
60
dynamic range
RSSI-level number of
programmable steps ^*)
RSSI-level step size in the
0.35
logarithmic region
Typ.
3000
3
1500
15
2
65
127
0.46
Max. Unit Fig.
4000 W 4
3.5 pF 4
1800 W 4
17 dB 4
dBm 4
dBm ₄
m 300
V_rms
4
m 10
V_rms
4
2.5 kW 5
5
dB ₅
5
0.6
dB
5
*) RSSI Level Programming (Typical Values)
m Input Voltage VIF ( V_rms)
0
25.4
42.4
424
4240
42400
RSSI Level (Decimal)
5
8
14
54
97
111
4 (17)
Rev. A3, 20-May-98
Preliminary Information