TDA7703 Datasheet, PDF (19/32 Pages) STMicroelectronics – Automatic self alignment for image rejection

TDA7703
Electrical specifications
Table 13. FM overall system performance (continued)
Parameter
Test condition
Min
Typ Max Units
Max. strong signal interferer
(V_u/V_d)
Desired = 40 dBµV
SINAD = 30dB
Undesired ΔF = 5MHz
dev = 40kHz, 1kHz
75
dB
Desired = 40 dBµV,
dev=40kHz, 400Hz,
SINAD=30dB
Undesired1 =±400kHz,
dev=40kHz, 1 kHz
62
dB
3 signal performance
(V_u1 & V_u2/V_d)⁽¹⁾
Undesired2=±800kHz, no
mod
Desired = 40 dBµV,
dev=40kHz, 400Hz,
SINAD=30dB
Undesired1 =±1MHz,
dev=40kHz, 1 kHz
65
dB
Undesired2=±2MHz, no mod
AM suppression
m=30%
70
dB
Image rejection
80
dB
Logarithmic field strength
indicator
@40 dBµV
read “FM_Smeter_log”
-0.33
-0.27
(equiv. _-0.3 (equiv.
-
to 37
to 43
dBµV)
dBµV)
1. Signal levels referred to combiner output.
Rev 1
19/32