Rainbow Electronics ATA5746 - Manual (Page 33)

33
4596A–RKE–05/06
ATA5745/ATA5746 [Preliminary]
3.20 RSSI output
Dynamic range (14),17 D
RSSI
65 dB A
Lower level of range
f
RF
= 315 MHz
f
RF
= 433.92 MHz
(14),17 P
RFIN_Low
–110 dBm A
Upper level of range
f
RF
= 315 MHz
f
RF
= 433.92 MHz
(14),17 P
RFIN_High
–45 dBm A
Gain (14),17 15 mV/dB A
Output voltage range (14),17 V
RSSI
350 1600 mV A
3.21
Output resistance
RSSI pin
17 R
RSSI
8 10 12.5 k Ω C
3.22 Blocking
Sensitivity (BER = 10
– 3 ) is
reduced by 3 dB if a
continuous wave blocking
signal at ±
∆f is ∆P
Block
higher than the useful
signal level
(Bit rate = 10 Kbits/s,
FSK, f
DEV
± 38 kHz,
Manchester code,
BR_Range2)
f
RF
= 315 MHz
∆f ± 1.5 MHz
∆f ± 2 MHz
∆f ± 3 MHz
∆f ± 10 MHz
∆f ± 20 MHz
(14)
∆P
Block
57.5
63.0
67.5
72.0
74.0
dBC C
f
RF
= 433.92 MHz
∆f ± 1.5 MHz
∆f ± 2 MHz
∆f ± 3 MHz
∆f ± 10 MHz
∆f ± 20 MHz
(14) ∆P
Block
56.5
62.0
66.5
71.0
73.0
dBC C
3.23 CDEM
Capacitor connected to
pin 23 (CDEM)
23 –5% 15 +5% nF D
13. Electrical Characteristics: General (Continued)
All parameters refer to GND and are valid for T
amb
= –40°C to +105°C, V
VS3V_AVCC
= V
VS5V
= 2.7V to 3.3V, and V
VS5V
= 4.5V to 5.5V.
Typical values are given at V
VS3V_AVCC
= V
VS5V
= 3V, T
amb
= 25°C, and f
RF
= 315 MHz unless otherwise specified. Details about current
consumption, timing, and digital pin properties can be found in the specific sections of the “Electrical Characteristics”.
No. Parameters Test Conditions Pin (1) Symbol Min. Typ. Max. Unit Type*
*) Type means: A = 100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter
Note: 1. Pin numbers in parenthesis were measured with RF_IN matched to 50 Ω according to Figure 2-1 on page 6 with component
values as in Table 2-2 on page 6 (RF
IN
).