U2731B Datasheet, PDF (17/25 Pages) ATMEL Corporation – DAB ONE- CHIP FRONT END

U2731B
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 Type*
5.6
Maximum gain control
voltage
VAGC_max
6.6
V
C
6 IF AGC Unit
6.1
Positive charge pump
current, fast mode
V_WAGC = LOW
V_SLI = HIGH
6.2
Negative charge pump
current, fast mode
V_WAGC = LOW
V_SLI = HIGH
6.3
Positive charge pump
current, slow mode
V_WAGC = LOW
V_SLI = LOW
6.4
Negative charge pump
current, slow mode
V_WAGC = LOW
V_SLI = LOW
6.5
Window AGC mode
charge pump current
V_WAGC = HIGH
28
ICPIF_POS,FM 145 180
220
µA
A
28 ICPIF_{NEG, FM} -220 -180 -145 µA
A
28
ICPIF_{POS, SM} 30
40
52
µA
A
28
ICPIF_{NEG, SM} -52
-40
-30
µA
A
28
ICPIF_WAGC
-4
0
+4
µA
A
6.6
Minimum gain control
voltage
28
VAGCIF_min
0.75
V
C
6.7
Maximum gain control
voltage
28
VAGCIF_max
5.9
V
C
6.8
Control voltage for
activated WAGC
WAGC = HIGH
22
VWAGC_High 2.0
V
A
6.9
Control voltage for
deactivated WAGC
WAGC = LOW
22
VWAGC_Low
0.7
V
A
6.10
Control voltage for
activated SLI
SLI = HIGH
21
VSLI_High
2.0
V
A
6.11
Control voltage for
deactivated SLI
SLI = LOW
21
VSLI_Low
0.7
A
7 PLL Part
Effective scaling factor
7.1 of programmable
divider
SF_eff
2048
32766
D
7.2
Effective scaling factor
of reference divider
SF_ref,eff
144
2047
D
7.3 Tuning step
16
kHz
D
8 REF Input
42
8.1 Input frequency range
8.2 Input sensitivity
8.3 Maximum input signal
8.4 Input impedance
9 REF Output
Internal oscillator overdriven
Internal oscillator overdriven
Internal oscillator overdriven
Single ended
f_ref
5
30 MHz
B
v_ref,min
50 mV_rms
A
v_ref,max
300
mV_rms
D
Z_ref
2 || 2.5
kΩ/pF D
5
9.1 Output voltage
1.5 kΩ || 2.5 pF load
v_out,ref
65 100
mV_rms
A
*) Type means: A = 100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter
Note: 1. The phase detector’s phase-noise contribution to the VCO’s frequency spectrum is determined by the operating frequency
of the phase detector divided by 4 according to the fractional-N technique (regularly: 16 kHz).
17
4671C–DAB–06/04