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參數(shù)資料
| 型號(hào)： | MAX2421EAI |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 無(wú)繩電話/電話 |
| 英文描述： | 900MHz Image-Reject Transceivers |
| 中文描述： | TELECOM, CELLULAR, RF AND BASEBAND CIRCUIT, PDSO28 |
| 封裝： | 5.30 MM, MO-150, SSOP-28 |
| 文件頁(yè)數(shù)： | 4/14頁(yè) |
| 文件大?。?/td> | 250K |
| 代理商： | MAX2421EAI |
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M
900MHz Image-Reject Transceivers
4
_______________________________________________________________________________________
AC ELECTRICAL CHARACTERISTICS (continued)
(MAX242X/246X EV kit, V
CC
= +3.3V; f
LO
= 925.7MHz (MAX2420), f
LO
= 961MHz (MAX2421), f
LO
= 985MHz (MAX2422),
f
LO
= 904.3MHz (MAX2460); f
LO
= 805MHz (MAX2463); f
RXIN
= 915MHz; P
RXIN
= -35dBm; P
TXIN
= -15dBm (330
); LNAGAIN = 2V;
TXGAIN = V
CC
; VCOON = 2.4V; RXON = TXON = MOD = DIV1 = PREGND = GND; T
A
= +25°C; unless otherwise noted.)
PARAMETER
MIN
TYP
2
MAX
UNITS
dBm
Transmitter Turn-On Time (Note 14)
OSCILLATOR AND PRESCALER
Gain Control Range (Note 13)
36
400
TXGAIN Control Slope (Note 13)
dB
ns
33
dB/V
Oscillator Phase Noise
Output 1dB Compression
Oscillator Frequency Range
(Notes 6, 15)
690
1100
MHz
82
8
dBc/Hz
10kHz offset (Note 16)
Standby to TX, or standby to RX
CONDITIONS
1V
≤
TXGAIN
≤
2V
Note 6:
Note 7:
Note 8:
Guaranteed by design and characterization.
Image rejection typically falls to 30dBc at the frequency extremes.
Refer to the
Typical Operating Characteristics
for plots showing receiver gain vs. LNAGAIN voltage, input IP3 vs.
LNAGAIN voltage, and noise figure vs. LNAGAIN voltage.
Two tones at P
RXIN
= -45dBm each, f1 = 915.0MHz and f2 = 915.2MHz.
Note 10:
Time delay from RXON = 0.45V to RXON = 2.4V transition to the time the output envelope reaches 90% of its final value.
Note 11:
Two tones at P
TXIN
= -21dBm each (330
), f1 = 10.6MHz, f2 = 10.8MHz (MAX2420/MAX2460), f1 = 45.9MHz,
f2 = 46.1MHz (MAX2421), f1 = 69.9MHz, f2 = 70.1MHz (MAX2422).
Note 12:
Refer to the
Typical Operating Characteristics
for statistical data.
Note 13:
Refer to the
Typical Operating Characteristics
for a plot showing transmitter gain vs. TXGAIN voltage.
Note 14:
Time delay from TXON = 0.45V to TXON = 2.4V transition to the time the output envelope reaches 90% of its final value.
Note 15:
Refers to useable operating range. Tuning range of any given tank circuit design is typically much narrower (refer to Figure 2).
Note 16:
Using tank components L3 = 5.0nH (Coilcraft A02T), C2 = C3 = C26 = 3.3pF, R6 = R7 = 10
.
Note 17:
This approximates a typical application in which TXOUT is followed by an external PA and a T/R switch with finite isolation.
Note 18:
Relative to the rising edge of PREOUT.
Note 9:
Prescaler Output Level
500
-8
mV
P-P
-11
-12
Required Modulus Setup Time
(Note 6)
10
ns
Z
L
= 100k
| |
10pF
DIV1 = 2.4V, Z
L
= 50
, T
A
= +25°C
DIV1 = 2.4V, Z
L
= 50
, T
A
= T
MIN
to T
MAX
Divide-by-64/65 mode (Note 18)
Required Modulus Hold Time
(Note 6)
0
ns
Divide-by-64/65 mode (Note 18)
RX to TX with P
RXIN
= -45dBm (RX mode) to
P
RXIN
= 0dBm (TX mode) (Note 17)
70
Oscillator Buffer Output Level
(Note 6)
dBm
Oscillator Pulling
kHz
Output Third-Order Intercept
(Note 11)
11
dBm
Noise Figure
23
LO to TXOUT Suppression
(Note 12)
34
dBc
dB
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| MAX2421EAI+ | 功能描述:射頻發(fā)射器 Integrated Circuits (ICs) RoHS:否 制造商:Micrel 類型:ASK Transmitter 封裝 / 箱體:SOT-23-6 工作頻率:300 MHz to 450 MHz 封裝:Reel |
| MAX2421EAI+T | 功能描述:射頻發(fā)射器 Integrated Circuits (ICs) RoHS:否 制造商:Micrel 類型:ASK Transmitter 封裝 / 箱體:SOT-23-6 工作頻率:300 MHz to 450 MHz 封裝:Reel |
| MAX2421EAI-T | 功能描述:射頻發(fā)射器 RoHS:否 制造商:Micrel 類型:ASK Transmitter 封裝 / 箱體:SOT-23-6 工作頻率:300 MHz to 450 MHz 封裝:Reel |
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| MAX2422EAI | 功能描述:射頻發(fā)射器 RoHS:否 制造商:Micrel 類型:ASK Transmitter 封裝 / 箱體:SOT-23-6 工作頻率:300 MHz to 450 MHz 封裝:Reel |
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