U4255BM-M Datasheet, PDF (20/32 Pages) ATMEL Corporation – AM / FM RECEIVER IC

Electrical Characteristics (Continued)
Test conditions (unless otherwise specified): V_S = 8.5 V, T_amb = 25°C.
No. Parameters
Test Conditions
Pin
Symbol Min.
Typ.
Max.
Unit
3 FM RF-AGC
3.1 Saturation voltage
No input signal
5
8.3
V
3.2 Saturation voltage
No input signal
5
3.3 Threshold level
In-band signal
30
V_S-0.2
110
V
dBµV
3.4 Maximum threshold Out-of-band signal
1
level
(110 MHz),
Bit 64, 65 = 0
100
102
104
dBmV
4 AM RF-AGC, AM Mode (Bit 92 = 0, Bit 93 = 1)
4.1 Saturation voltage
No input signal
7
8.3
V
4.2 Saturation voltage
No input signal
7
4.3 Output voltage for
Bit 92 = 1
7
minimum gain
V_S-0.2
V
6.5
6.8
7.1
V
4.4 Output voltage for
Bit 92 = 1
7
minimum gain
V_S-1.7
V
4.5 Maximum control
V(Pin 8) = 3 V
6
voltage
6.5
7.0
7.5
V
4.6 Maximum control
V(Pin 8) = 3 V
6
voltage
V_S-1.5
V
4.7 Minimum control
V(Pin 8) = 6 V
6
voltage
0.2
0.7
V
4.8 Minimum threshold
Bits 62, 63 = 0
41
level
97
99
101
dBµV
5 AM Mixer, AM Mode (Bit 92 = 0, Bit 93 = 1)
5.1 Supply current
Sum of current in
Pins 43, 44
43, 44
14
16
20
mA
5.2 Conversion
conductance
3, 41,
43, 44
4.1
mS
5.3 3^rd-order input
intercept point
Pin 3 AC-grounded
41
IP3_AMmix
132
dBµV
5.4 Noise figure (SSB)
Generator resistance
2.5 kW (Pin 41)
43, 44
NF_AMmix
14
dB
5.5 Input bias DC voltage
3, 41
2.4
2.6
2.9
V
5.6 Input resistance
Single-ended, Pin 39
AC-grounded
3, 41
2.5
kW
5.7 Input capacitance
3, 41
3
pF
5.8 Maximum output
Differential
43, 44
12
Vpp
voltage
5.9 Output resistance
43, 44
100
kW
6 FM Mixer (FM Mode (Bit 92 = 1, Bit 93 = 0)
6.1 Supply current
Sum of current in
Pins 43, 44
43, 44
15
17.5
20
mA
6.2 Conversion
conductance
1, 2,
43, 44
7
mS
*) Type means: A =100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter
Type*
A
B
D
A
A
B
A
B
A
B
A
A
A
D
C
C
A
D
D
D
D
A
D
20 U4255BM-M
4519C–AUDR–07/02