U2510B
| Model | U2510B |
| Description | All-Band AM/FM Receiver and Audio Amplifier |
| PDF file | Total 15 pages (File size: 266K) |
| Chip Manufacturer | ATMEL |
U2510B
Electrical Characteristics (continued)
V
S
= 6 V, T
amb
= 25°C, test circuit (figure 16), unless otherwise specified
Parameters
AM rejection ratio
RF sensitivity
Limiting threshold (-3 dB)
Mute voltage
Test Conditions / Pins
m = 30%
(S+N)/N = 26 dB
(S+N)/N = 46 dB
Test point: Mute
V
i2
= 0
V
i2
= 60 dBmV
Referred to V
0
at V
i2
= 0
S
6
= A
S
6
= C
f
OSC
> f
in
, S
3
= A, S
6
= A
V
i2
x
10 dBmV
V
i2
= 20 dBmV
V
i2
= 80 dBmV
Symbol
AM
RR
V
i2
V
i2
V
i2
V
mute
V
mute
MD
MD
Min.
Typ.
25
9
22
3
1.8
0.4
26
20
no AFC
"
180
"
220
5.5
180
Max.
Unit
dB
dBmV
dBmV
dBmV
V
V
dB
dB
Mute depth
AFC holding range
FHR
FHR
FHR
LED current
I
LED
Oscillator voltage
eZ
load
= 2.5 kW
Pin 7
V
OSC
AM section
V
i1
= 60 dBmV, f
i1
= 1.6 MHz, f
m
= 1 kHz, m = 30%, f
iIF
= 455 kHz,
AF measuring range: 300 Hz to 20 kHz, (S
2
= AM, S
1
= B, test point: V
D
)
AM front end voltage gain
GV
AM
= 20 log (V
iIF
/V
i1
)
GV
AM
V
i1
= 20 dBmV, S
1
= A
Recovered audio voltage
V
D af1
Detector output resistance
Pin 23
R
Do
Detector output distortion
V
i1
= 60 dBmV
THD
V
i1
= 105 dBmV
THD
RF sensitivity
(S+N)/N= 10 dB
V
i1
(S+N)/N= 26 dB
V
i1
(S+N)/N= 46 dB
V
i1
AGC figure of merit referred
V
i1
= 105 dBmV, voltage
to V
D af
drop (V
D af
) = –10 dB
FOM
IF input resistance
Pin 16
Z
i
LED current
I
LED
Oscillator voltage
Pin 5
V
OSC
kHz
kHz
mA
mV
25
70
7.5
1
3
0
16
35
100
3.1
5.5
160
dB
mV
kW
%
%
dBmV
dBmV
dBmV
dB
kW
mA
mV
Rev. A3, 23-Feb-01
5 (15)
