U2731B Datasheet, PDF (15/25 Pages) ATMEL Corporation – DAB ONE- CHIP FRONT END

U2731B
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 Type*
1 Overall Characteristics
20, 25, 38
1.1 Supply voltage
V(CPRF) = V(CPIF) < 0.8 V
M3 = M2 = HIGH
M1 = M0 = LOW
1.2
Minimum supply current
TAi = TCi = 0000; TBi = 1000
SWA = SWB = SWC = LOW
TRI = LOW; PLCK = LOW
I100 = I50 = LOW; V(ADR) = open
SLI = LOW; WAGC = HIGH
V_S
8.0 8.5 9.35 V
I_S,min
74
mA
B
1.3
Maximum supply
current
3.4 V < V(CPRF) = V(CPIF)
< 3.6 V; M3 = M2 = HIGH
M1 = M0 = LOW
TAi = TCi = 0000; TBi = 1000
SWA = LOW; SWB = LOW
SWC = LOW; TRI = LOW
PLCK = LOW; I100 = I50 = LOW
V(ADR) = open; SLI = LOW
WAGC = HIGH
I_S,max
79
mA
B
2 RF Part
2.1 Voltage gain
RFA1, RFA2; RFB1, RFB2) →
SAW1, SAW2
(see Figure 9 on page 21)
12 (14)
→18, 19
G_V,RF
20 24
26
dB
A
2.2 AGC range RF
23 27
29
dB
A
2.3
Noise figure
(double side band)
RFA1, (RFB1) →SAW1, SAW2;
RFA2, RFB2 blocked
12 (14)
→19
NF_DSB,RF
12
dB
D
Differential, 3rd order
2.4
Maximum input power
level
intermodulation distance ≥ 40 dBc, 12, 13
Pout = -19 dBm, TAi = 0000,
(14, 15)
P_in,max,MIX
-10
RL (SAW1, SAW2) = 200 Ω
dBm
A
2.5 Input frequency range
12, 13
(14, 15)
f_in,RF
70
260 MHz
B
2.6 Input impedance
Single ended
Output frequency range
2.7 for AGC-voltage
generation
12 (14)
18, 19
Z_in,RF
f_out,SAW
1.3
38,912
±5
kΩ
D
MHz
D
2.8
Maximum output power
level
Output power, differential;
RL (SAW1, SAW2) > 200 Ω,
TAi = 0000
18, 19
-7
dBm
D
AGC threshold (th1)
2.9
TAi = ‘1000’
TAi = ‘1111’
TAi = ‘0000’
Output power, differential
controlled by two-wire bus bits TAi; 18, 19
RL (SAW1, SAW2) = 200 Ω
p_TH,RF
50
90
160
120 _mVrms
A
B
10
B
*) 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).
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4671C–DAB–06/04