Philips CEM2000/00, Руководство по обслуживанию

Страница: 59 / 72

TDA7703/TDA7703R
6.4 FM - SECTION
VCC = 4.7V to 5.25V; Tamb = 27°C; f
c
= 76 to 108 MHz; 60dB μ V antenna level; mono signal, unless otherwise specified.
Antenna level equivalence: 0dB μ V = 1 μ V
rms,
ref. deviation = 40 kHz
<
table to be inserted >
6.5 AM - SECTION
<
table to be inserted >
6.6 VCO
<
table to be inserted >
6.7 Phase Locked Loop
Limits
Symbol Parameter Test Condition, Comments
Min Typ Max
Units
Tsettle settling time FM Δ f < 10Khz 300 µs
FM step FM Frequency step 5 Khz
AM step AM frequency step 500 Hz
6.8 IF ADC
Limits
Symbol Parameter Test Condition, Comments
Min Typ Max
Units
DR
FM
Dynamic range in FM BW = ±100 kHz 90 dB
vnoise
FM
Input noise referred to mixer
input
mixer 1
mixer 2 1.1
0.7
1.9
1.2
nV/
√
Hz
DR
AM
Dynamic range in AM BW = ±3 kHz 103 dB
vnoise
AM
Input noise referred to mixer
input
8.1 13.6 nV/
√
Hz
6.9 Audio DAC
Limits
Symbol Parameter Test Condition, Comments
Min Typ Max
Units
Vout Max. output voltage Full scale 1 Vrms
BW Bandwidth 1dB attenuation 15 Khz
Rout Output resistance 600 750 900 Ω
onoise Output noise 60 95 uVrms
D Distortion -6 dBFS 0.03 0.04 %
6.10 IO interface pins
Limits
Symbol Parameter Test Condition, Comments
Min Typ Max
Units
High level output voltage
Iout = 500uA (max total
current sum of all GPIOs)
2.9 3.2 V
Low level output voltage Iout = -1mA 0.1 0.3 V
Input voltage range 0 3.5 V
High level input voltage 2.0 V
Low level input voltage 0.8 V
Treset Reset time
Minimum time during which
pin RSTN must be low so as
to reset the device
10 us
Tlatch
Boot mode configuration latch
time Minimum time during which
the voltage applied at pins 25
10 us
Rev. 1.0 9/22