TDA5745 Просмотр технического описания (PDF) - Philips Electronics
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производитель
TDA5745 Datasheet PDF : 20 Pages
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Philips Semiconductors
Low power mixers/oscillators for
hyperband tuners
Preliminary specification
TDA5744; TDA5745
SYMBOL
PARAMETER
CONDITIONS
MIN. TYP. MAX. UNIT
gi
input conductance
fRF = 45.25 MHz
fRF = 399.25 MHz
Ci
input capacitance
fRF = 45.25 to 399.25 MHz
Vo
output voltage causing 1% fRF = 45.25 MHz; see Fig.6
cross modulation in channel fRF = 399.25 MHz; see Fig.6
Vi
input voltage causing pulling fRF = 399.25 MHz; note 1
in channel (750 Hz)
GV
voltage gain
fRF = 45.25 MHz; see Fig.4
fRF = 399.25 MHz; see Fig.4
−
0.25 −
−
0.5 −
−
2
−
116 119 −
116 119 −
−
88
−
mS
mS
pF
dBµV
dBµV
dBµV
24.5 27
24.5 27
29.5 dB
29.5 dB
VHF oscillator
fosc
∆fosc(V)
∆fosc(T)
∆fosc(t)
Φosc
RSC(p-p)
oscillator frequency
oscillator frequency shift
with supply voltage
oscillator frequency drift
with temperature
oscillator frequency drift
with time
phase noise,
carrier-to-noise sideband
ripple susceptibility of VCC
(peak-to-peak value)
84.15
∆VCC = 5%; note 2
−
∆VCC = 10%; worst case in the
−
frequency range; note 2
∆T = 25 °C without compensation: NP0 −
capacitors; worst case in the frequency
range; note 3
worst case in the frequency range;
−
note 4
±100 kHz frequency offset; worst case −
in the frequency range
VCC = 5 V; worst case in the frequency 15
range; ripple frequency 500 kHz; note 5
−
100
200
1 300
600
106
40
438.15 MHz
200 kHz
−
kHz
tbf
kHz
tbf
kHz
−
dBc/Hz
−
mV
UHF mixer (including IF amplifier)
fi(RF)
RF input frequency
picture carrier frequency
407.25 −
855.25 MHz
F
noise figure
fRF = 407.25 MHz; see Fig.10
−
8
10
dB
fRF = 855.25 MHz; not corrected for
−
9
11
dB
image; see Fig.10
Rs
real part of Zi = Rs + jωLs fRF = 407.25 MHz
fRF = 855.25 MHz
−
30
−
Ω
−
38
−
Ω
Ls
imaginary part of
Zi = Rs + jωLs
fRF = 407.25 MHz
fRF = 855.25 MHz
Vo
output voltage causing 1% fRF = 407.25 MHz; see Fig.7
cross modulation in channel fRF = 855.25 MHz; see Fig.7
Vi
input voltage causing pulling fRF = 855.25 MHz; note 1
in channel (750 Hz)
−
9
−
−
6
−
116 119 −
114 117 −
−
78
−
nH
nH
dBµV
dBµV
dBµV
GV
voltage gain
fRF = 407.25 MHz; see Fig.4
35
38
41
dB
fRF = 855.25 MHz; see Fig.4
35
38
41
dB
1998 Mar 09
7
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