SA2420 Datasheet, PDF (5/16 Pages) NXP Semiconductors – Low voltage RF transceiver . 2.45GHz

Philips Semiconductors
Low voltage RF transceiver — 2.45 GHz
Product specification
SA2420
AC ELECTRICAL CHARACTERISTICS (continued)
SYMBOL
PARAMETER
LIMITS
TEST CONDITIONS
UNITS
MIN
-4σ
TYP
+4σ MAX
Rx Mixer Spurious Components (P_IN = P_-1dB)
P_RF-IF RF feedthrough to IF
C_L = 2pF per side
-35
dBc
P_LO-IF LO feedthrough to IF
C_L = 2pF per side
-35
dBc
Tx Mixer (RF = Pin 19, IF = Pins 7 and 8, LO = Pin 10 or 12, P_LO = -10dBm)
PG_C
Power conversion gain: R_L = 50Ω
R_S = 50Ω
f_S = 2.45GHz,
f_LO = 2.1GHz,
f_IF = 350MHz
15.0
17
19.9
dB
∆G_C/∆T Gain temperature drift
-0.032
dB/°C
∆G_C/∆V_CC Gain voltage drift
0.4
dB/V
S_11–RF Output match at RF (2.45GHz)¹
-10
dB
NF_M
SSB noise figure (2.45GHz) (50Ω)
13.2
dB
P_-1dB Output 1dB gain compression
1.5
2.9
4.3
dBm
IP3
Output third order intercept
f₁ - f₂ = 1MHz
10.1 +11.5 12.9
dBm
f_RF
RF frequency range³
f_IF
IF frequency range³
2.4
2.45
2.5
GHz
300
350
400
MHz
Tx Mixer Spurious Components (P_OUT = P_-1dB)
P_IF-RF IF feedthrough to RF
-29
dBc
P_LO-RF LO feedthrough to RF
-20
dBc
P_2LO-RF 2*LO feedthrough to RF
-25
dBc
P_IMAGE-RF Image feedthrough to RF
-0
dBc
LO Buffer: Full and Half Frequency inputs
P_LO
LO drive level (see figure 16)
S_11-LO1 Mixer input match (LO = 2.1GHz)
S_11-LO2 Mixer input match (LO = 1.05GHz)
f_LO2G
f_LO1G
LO2G frequency range³
LO1G frequency range³
Switching²
-10
LO mode = Hi
LO mode = Low
LO mode = Hi
1.9
LO mode = Low
0.85
-7
-10
-10
2.1
1.05
5
dBm
dB
dB
2.3
GHz
1.25
GHz
t_Rx-Tx Receive-to-transmit switching time
1
µs
t_Tx-Rx Transmit-to-Receive switching time
1
µs
t_{POWER UP} Chip enable time
1
µs
t_{PWR DWN} Chip disable time
1
µs
NOTES:
1. With simple external matching
2. With 50pF coupling capacitors on all RF and IF parts
3. This part has been optimized for the frequency range at 2.4–2.5 GHz. Operation outside this frequency range may yield performance other
than specified in this datasheet.
1997 May 23
5