Philips CEM5000/00, Service Manual

Page: 73 / 83

TDA7703/TDA7703R
7.0 Overall system performance
7.1 FM overall system performance
Antenna level equivalence: 0dB μ V = 1 μ V
rms
(Antenna terminal voltage with 50 Ω source); no antenna dummy
Reference deviation = 40 kHz, de-emphasis = 50 us, f
audio
= 1 KHz, V
rf
= 60 dBu
Unless otherwise specified.
Limits
Symbol Parameter Test Condition, Comments
Min Typ Max
Units
Tuning range FM Eu (can be modified by the user) 87.5 108 MHz
Tuning step FM Eu (can be modified by the user) 100 kHz
Tuning range FM US (can be modified by the user) 87.5 107.9 MHz
Tuning step FM US (can be modified by the user) 200 kHz
Tuning range FM Jp (can be modified by the user) 76 90 MHz
Tuning step FM Jp (can be modified by the user) 100 kHz
Tuning range FM EEu (can be modified by the user) 65 74 MHz
Tuning step FM EEu (can be modified by the user) 100 kHz
Sensitivity S/N =26dB -4 dBu
S/N
@ 10dBu, no highcut, DISS
BW = #2
TBD dB
@ 60dBu, mono 75 dB
@ 60dBu, Deviation = 75
kHz, mono
81 dB Ultimate S/N
@ 60dBu, stereo 73 dB
Distortion Deviation= 75 kHz 0.05 %
Max deviation THD=3% TBD kHz
Adjacent channel Selectivity
Δ F=100kHz, SINAD=30dB
desired 40 dBu, dev=40kHz,
400Hz
undesired. dev=40kHz, 1Khz
TBD dB
Alternate Channel Selectivity
Δ F=200kHz, SINAD=30dB
desired 40 dBu, dev=40kHz,
400Hz
undesired. dev=40kHz, 1kHz
TBD dB
Max. Strong Signal Interferer
Desired = 10dBu
SINAD = 30dB
Undesired
Δ F = 1MHz
TBD dBu
Desired = 40dBu,
dev=40kHz, 400Hz,
SINAD=30dB
Undesired1 =±400kHz,
dev=40kHz, 1 kHz
Undesired2=±800kHz, no
mod
TBD dBu
3 signal performance
Desired = 40dBu,
dev=40kHz, 400Hz,
SINAD=30dB
Undesired1 =±1MHz,
dev=40kHz, 1 kHz
Undesired2=±2MHz, no mod
TBD dBu
AM suppression m=30% 70 dB
Image rejection 70 dB
Logarithmic field strength
indicator @40 dBu
read “FM_Smeter_log”
-0.33
(equiv.
to 37
dBu)
-0.3
-0.27
(equiv.
to 43
dBu)
-
Rev. 1.0 12/22