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參數(shù)資料
| 型號(hào)： | TDA5221 |
| 廠商： | INFINEON TECHNOLOGIES AG |
| 英文描述： | ASK/FSK Single Conversion Receiver |
| 中文描述： | 詢價(jià)/ FSK信號(hào)單一轉(zhuǎn)換接收器 |
| 文件頁(yè)數(shù)： | 42/44頁(yè) |
| 文件大小： | 705K |
| 代理商： | TDA5221 |
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Reference
5 - 9
TDA 5221
preliminary
Wireless Components
Target Specification, October 2001
5.1.4
AC/DC Characteristics at T
AMB
= -40 to 105
°
C
Currents flowing into the device are denoted as positive currents and vice
versa.
Table 5-4 AC/DC Characteristics with T
AMB
= -40
°
C ... + 105
°
C, V
VCC
= 4.5 ... 5.5 V
Parameter
Symbol
Limit Values
Unit
Test Conditions
L
Item
min
typ
max
Supply
Supply Current
1
Supply current,
standby mode
I
S PDWN
50
t.b.d.
nA
Pin 27 (PDWN)
open or tied to 0 V
2
Supply current, device
operating in FSK mode
I
SF
t.b.d.
6.4
t.b.d.
mA
Pin 11 (FSEL) tied
to GND, Pin 15
(MSEL) tied to GND
3
Supply current, device
operating in ASK mode
I
SA
t.b.d.
5.6
t.b.d.
mA
Pin 11 (FSEL)
open, Pin 15
(MSEL) open
Signal 3VOUT (PIN 24)
1
Output voltage
V
3VOUT
2.9
3.1
3.3
V
3VOUT Pin open
2
Current out
I
3VOUT
-3
-5
-10
μA
see Section 4.1
Signal THRES (PIN 23)
1
Input Voltage range
V
THRES
0
V
S
-1V
V
see Section 4.1
2
LNA low gain mode
V
THRES
0
0.3
V
3
LNA high gain mode
V
THRES
3
V
S
V
or shorted to Pin 24
4
Current in
I
THRES_in
5
nA
Signal TAGC (PIN 4)
1
Current out,
LNA low gain state
I
TAGC_out
-1
-4.2
-8
μA
RSSI > V
THRES
2
Current in, LNA high
gain state
V
TAGC_in
0.5
1.5
5
μA
RSSI < V
THRES
MIXER
1
Conversion Voltage
Gain f
RF
= 315 MHz
G
MIX
+19
dB
LIMITER
Signal Input LIM/X (PINS 17/18)
1
RSSI dynamic range
DR
RSSI
60
80
dB
2
RSSI Level at Data Fil-
ter Output SLP,
RF
IN
= -103dBm
RSSI
low
0.3
1
V
LNA in high gain
mode
3
RSSI Level at Data Fil-
ter Output SLP,
RF
IN
= -30dBm
RSSI
high
1.8
3
V
LNA in high gain
mode
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