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SN761640 Datasheet, PDF (10/30 Pages) Texas Instruments – DIGITAL TV TUNER IC
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SN761640
SLES237 – OCTOBER 2008 .............................................................................................................................................................................................. www.ti.com
Mixer, Oscillator, IF Amplifier (DIF OUT)
VCC = 5 V, TA = 25°C, measured in Figure 25 reference measurement circuit at 50-Ω system, IF = 44 MHz,
IF filter characteristics: fpeak = 44 MHz (unless otherwise noted)
GC1D
GC3D
GC4D
GC6D
GC7D
GC9D
NF1D
NF3D
NF4D
NF6D
NF7D
NF9D
CM1D
CM3D
CM4D
CM6D
CM7D
CM9D
VIFO1D
VIFO3D
VIFO4D
VIFO6D
VIFO7D
VIFO9D
ΦPLVL1D
ΦPLVL3D
ΦPLVL4D
ΦPLVL6D
ΦPLVL7D
ΦPLVL9D
PARAMETER
Conversion gain (mixer-IF amplifier), VHF-LOW
Conversion gain (mixer-IF amplifier), VHF-HIGH
Conversion gain (mixer-IF amplifier), UHF
Noise figure, VHF-LOW
Noise figure, VHF-HIGH
Noise figure, UHF
Input voltage causing 1% cross-modulation distortion,
VHF-LOW
Input voltage causing 1% cross-modulation distortion,
VHF-HIGH
Input voltage causing 1% cross-modulation distortion, UHF
IF output voltage, VHF-LOW
IF output voltage, VHF-HIGH
IF output voltage, UHF
Phase noise, VHF-LOW
Phase noise, VHF-HIGH
Phase noise, UHF
TEST CONDITIONS
fin = 57 MHz(1)
fin = 171 MHz(1)
fin = 177 MHz(1)
fin = 467 MHz(1)
fin = 473 MHz(1)
fin = 864 MHz(1)
fin = 57 MHz
fin = 171 MHz
fin = 177 MHz
fin = 467 MHz
fin = 473 MHz
fin = 864 MHz
fin = 57 MHz(2)
fin = 171 MHz(2)
fin = 177 MHz(2)
fin = 467 MHz(2)
fin = 473 MHz(2)
fin = 864 MHz(2)
fin = 57 MHz
fin = 171 MHz
fin = 177 MHz
fin = 467 MHz
fin = 473 MHz
fin = 864 MHz
fin = 57 MHz(3)
fin = 171 MHz(4)
fin = 177 MHz(3)
fin = 467 MHz(4)
fin = 473 MHz(3)
fin = 864 MHz(4)
(1) IF = 44 MHz, RF input level = 70 dBµV, differential output
(2) fundes = fdes ±6 MHz, Pin = 70 dBµV, AM 1 kHz, 30%, DES/CM = S/I = 46 dB
(3) Offset = 1 kHz, CP current = 350 µA, reference divider = 64
(4) Offset = 1 kHz, CP current = 900 µA, reference divider = 64
TYP UNIT
35
dB
35
35
dB
35
35
dB
35
9
dB
9
9
dB
10
10
dB
12
79
dBµV
79
79
dBµV
79
77
dBµV
77
117
dBµV
117
117
dBµV
117
117
dBµV
117
–90
dBc/Hz
–85
–85
dBc/Hz
–77
–80
dBc/Hz
–77
10
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