U4256BM-R Datasheet, PDF (15/19 Pages) ATMEL Corporation – Frequency Synthesizer for Radio Tuning

U4256BM-R
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
7 PDO
7.1 Saturation voltage
HIGH
3, 4
8.0
8.5
V
7.2 Saturation voltage
LOW
3, 4
0
0.4
V
8 SWO1, SWO2, SWO3, SWO4 (Open Drain)
8.1 Output leakage current Pin 7,8,9,10 over R
HIGH
against 8.5 V
7, 8,
9, 10
I_SWOH
100
nA
8.2 Output voltage LOW I = 1 mA
7, 8,
9, 10
V_SWOL
100
400
mV
9 DAC1, DAC2
9.1 Output current
9.2 Output voltage
9.3 Maximum offset range offset = 0, gain = 53
(FM)
3, 4
3, 4
I_{DAC1, 2}
V_{DAC1, 2}
3, 4
0.3
0.45
±1
mA
V_S-0.6
V
0.56
0.65
V
9.4 Minimum offset range offset = 63, gain = 53
(FM)
3, 4
-0.45 -0.57 -0.65
V
9.5
Maximum gain range
(FM)
gain = 255, offset = 31
3, 4
0.63
0.69
0.75
9.6 Minimum gain range
(FM)
gain = 0, offset = 31
3, 4
2.1
2.16
2.23
10 DAC3
10.1 Output current
10.2 Output voltage
Bit 68-66: 000
10.3 Output voltage
Bit 68-66: 001
10.4 Output voltage
Bit 68-66: 010
10.5 Output voltage
Bit 68-66: 011
10.6 Output voltage
Bit 68-66: 100
10.7 Output voltage
Bit 68-66: 101
10.8 Output voltage
Bit 68-66: 110
10.9 Output voltage
Bit 68-66: 111
11 3-wire Bus, ENABLE, DATA, CLOCK
5
I_DAC3
±1
mA
5
V_DAC3
0.4
0.55
0.7
V
5
V_DAC3
1.1
1.25
1.4
V
5
V_DAC3
1.8
1.90
2.1
V
5
V_DAC3
2.4
2.60
2.8
V
5
V_DAC3
3.2
3.30
3.5
V
5
V_DAC3
3.8
4.10
4.3
V
5
V_DAC3
4.5
4.80
5.0
V
5
V_DAC3
5.2
5.45
5.7
V
11.1 Input voltage HIGH
LOW
11.2 Clock frequency
16-18
V_BUSH
V_BUSL
2.7
-0.3
17
5.3
V
0.8
V
1.0
MHz
11.3 Period of CLK HIGH
LOW
11.4 Rise time EN, DATA,
CLK
17
t_H
t_L
250
250
16-18
t_r
ns
ns
400
ns
11.5 Fall time EN, DATA,
CLK
16-18
t_f
100
ns
*) Type means: A = 100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter
Type*
A
A
A
A
C
A
A
A
A
A
C
A
A
A
A
A
A
A
A
A
A
D
D
D
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4562C–AUDR–08/04