ta31275 TOSHIBA Semiconductor CORPORATION, ta31275 Datasheet - Page 21

• Manufacturer Part Number: ta31275
• Description: Am/fm Rf/if Detector Ic For Low Power Wireless System
• Manufacturer: TOSHIBA Semiconductor CORPORATION

Reference Data
−10
−20
−30
−40
−50
−60
10
60
58
56
54
52
50
48
46
44
42
40
−20
0
1
Dev = ±20
Waveform Shaping Output Duty Ratio –
S/N and AMR RF Input Characteristics
Dev = ±40
RF IN input level V (RF) in (dBµVEMF)
N
0
Supply Voltage Characteristics
2
Supply voltage V
S + N
20
AMR
(with a narrowband ceramic filter (150 k) used)
(Dev = ±20 k)
3
40
60
4
CC
V CC = 5 V
f (RF) in = 314.9 MHz
fmod = 600 Hz
f (L o ) in = 40.7 MHz
V (L o ) in = 100dBµV
LOBS = “H”
No SAW filter
<Meas point>
FILOUT at audio
analyzer
V CC = 5 V
f (RF) in = 314.9 MHz
V (RF) in = 20dBµV
fmod = 600 Hz
f (L o ) in = 40.7 MHz
V (L o ) in = 100dBµV
LOBS = “H”
No SAW filter
<Meas point>
DATA at oscilloscope
80
(V)
5
100
120
6
21
−10
−20
−30
−40
−50
−60
−70
10
−20
0
S/N and AMR RF Input Characteristics
RF IN input level V (RF) in (dBµVEMF)
N
0
TA31275FN/ TA31275FNG
S + N
20
AMR
(Dev = ±40 k)
40
60
V CC = 5 V
f (RF) in = 314.9 MHz
fmod = 600 Hz
f (L o ) in = 40.7 MHz
V (L o ) in = 100dBµV
LOBS = “H”
No SAW filter
<Meas point>
FILOUT at audio
analyzer
80
100
03-01-23
120