U4256BM-R Datasheet, PDF (14/19 Pages) ATMEL Corporation – Frequency Synthesizer for Radio Tuning

Thermal Resistance
Parameters
Junction ambient, when soldering to PCB
Symbol
R_thJA
Operating Range
All voltages are referred to GND (Pin 11)
Parameters
Symbol
Min.
Supply voltage range
Ambient temperature
Input frequency FMOSCIN
Programmable N, R divider
Pin 6
Pin 19
V_S
8
T_amb
-40
f_in
70
SF
2
Crystal reference oscillator Pins 12 and 13
fXTAL
0.1
Value
140
Typ.
8.5
Unit
K/W
Max.
12
+85
160
65535
15
Unit
V
°C
MHz
MHz
Electrical Characteristics
Test Conditions (unless otherwise specified): V_S = 8.5 V, T_amb = 25°C.
No. Parameters
Test Conditions
Pin Symbol Min.
Typ.
Max.
Unit
1 Supply Voltage
1.1 Analog supply voltage
2 Supply Current
6
V_S
8
8.5
12
V
2.1 Analog supply current
3 OSCIN
6
I_S
5
10
25
mA
3.1 Input voltage
f = 0.1 to 15 MHz
4 OSC Buffer (MX2LO)
13
OSC
100
mV_rms
4.1 Output AC voltage
At Pin15: 47 pF and
1 kΩ
15
v_MX2LO
80
120
200
mV_pp
4.2 Output DC voltage
5 FMOSCIN
15
V_MX2LO
1.8
2.0
2.2
V
5.1 Input voltage
f = 70 to 120 MHz
f = 120 to 160 MHz
6 Pulsed Current Output PD
19
FMOSC
FMOSC
40
150
mV_rms
mV_rms
6.1 Output current Bit 71, PD = 2.5 V
70 = ‘00’
2
± IPD
20
25
30
µA
6.2 Output current Bit 71, PD = 2.5 V
70 = ‘01’
2
± IPD
80
100
120
µA
6.3 Output current Bit 71, PD = 2.5 V
70 = ‘10’
2
± IPD
400
500
600
µA
6.4 Output current Bit 71, PD = 2.5 V
70 = ‘11’
2
± IPD
1500 2000 2400
µA
6.5 Leakage current
PD = 2.5 V
2
± IPDL
20
nA
*) Type means: A = 100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter
Type*
A
A
B
B
A
B
A
A
A
A
A
14 U4256BM-R
4562C–AUDR–08/04