
LTC2249
3
2249f
The
●
denotes the specifications which apply over the full operating temperature range,
otherwise specifications are at T
A
= 25
°
C. A
IN
= –1dBFS. (Note 4)
SYMBOL
SNR
PARAMETER
Signal-to-Noise Ratio
CONDITIONS
5MHz Input
40MHz Input
70MHz Input
140MHz Input
5MHz Input
40MHz Input
70MHz Input
140MHz Input
5MHz Input
40MHz Input
70MHz Input
140MHz Input
5MHz Input
40MHz Input
70MHz Input
140MHz Input
f
IN1
= 28.2MHz, f
IN2
= 26.8MHz
Figure 8 Test Circuit
MIN
TYP
73
73
73
72.6
90
90
90
85
95
95
95
90
72.9
72.8
72.8
72.1
90
575
MAX
UNITS
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
●
70.8
SFDR
Spurious Free Dynamic Range
2nd or 3rd Harmonic
●
75
SFDR
Spurious Free Dynamic Range
4th Harmonic or Higher
●
81
S/(N+D)
Signal-to-Noise Plus Distortion Ratio
●
70.2
I
MD
Intermodulation Distortion
Full Power Bandwidth
MHz
DY
A
IC ACCURACY
U
W
PARAMETER
V
CM
Output Voltage
V
CM
Output Tempco
V
CM
Line Regulation
V
CM
Output Resistance
CONDITIONS
I
OUT
= 0
MIN
1.475
TYP
1.500
±
30
3
4
MAX
1.525
UNITS
V
ppm/
°
C
mV/V
2.7V < V
DD
< 3.4V
–1mA < I
OUT
< 1mA
IU
U
U
(Note 4)