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参数资料
| 型号： | MAX2426EAI |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 无绳电话/电话 |
| 英文描述： | 900MHz Image-Reject Receivers with Transmit Mixer |
| 中文描述： | TELECOM, CELLULAR, RF AND BASEBAND CIRCUIT, PDSO28 |
| 封装： | SSOP-28 |
| 文件页数： | 4/14页 |
| 文件大小： | 163K |
| 代理商： | MAX2426EAI |
V
L
= 50
,
V
DIV1
= 2.4V,
Z
L
= 50
M
900MHz Image-Reject Receiver
with Transmit Mixer
4
_______________________________________________________________________________________
AC ELECTRICAL CHARACTERISTICS (continued)
(MAX2424/MAX2426 EV kit, V
CC
= +3.3V, f
RXIN
= 915MHz, P
RXIN
= -35dBm, V
TXIN
= V
TXIN
= 2.3V (DC bias), V
TXIN
= 250mVp-p,
f
TXIN
= 1MHz, V
LNAGAIN
= 2V, V
VCOON
= 2.4V, RXON = TXON = MOD = DIV1 = PREGND = GND, T
A
= +25°C, unless otherwise noted.)
PARAMETER
MIN
TYP
MAX
UNITS
Oscillator Phase Noise
Oscillator Frequency Range
800
1100
MHz
82
72
8
dBc/Hz
(Note 5)
CONDITIONS
Note 5:
Note 6:
Note 7:
Guaranteed by design and characterization.
Image rejection typically falls to 30dBc at the frequency extremes.
Refer to the Typical Operating Characteristics for a plot 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.
Time delay from V
RXON
= 0.45V to V
RXON
= 2.4V transition to the time the output envelope reaches 90% of its final value.
Note 10:
Output power typically falls to -10dBm at the frequency extremes.
Note 11:
Two tones at V
TXIN
= 125mVp-p, f1 = 1.0MHz, and f2 = 1.2MHz.
Note 12:
Time delay from V
TXON
= 0.45V to V
TXON
= 2.4V transition to the time the output envelope reaches 90% of its final value.
Note 13:
Using tank components L3 = 5.0nH (Coilcraft A02T), C2 = C3 = C26 = 3.3pF, R6 = R7 = 10
.
Note 14:
This approximates a typical application in which TXOUT is followed by an external PA and a T/R switch with finite isolation.
Note 15:
Relative to the rising edge of PREOUT.
Note 8:
Note 9:
Prescaler Output Level
500
-8
mVp-p
-11
-12
Required Modulus Setup Time
(Notes 5, 15)
10
ns
Z
L
= 100k
| |
10pF
÷
64/65 mode
Required Modulus Hold Time
(Notes 5, 15)
0
ns
÷
64/65 mode
Oscillator Buffer Output Level
(Notes 5, 13)
dBm
10kHz offset (Note 13)
Standby to TX or Standby to RX
35
70
Oscillator Pulling
kHz
110
RX to TX withP
RXIN
=-45dBm (RX mode)
to P
RXIN
= 0dBm (TX mode) (Note 14)
MAX2424
MAX2426
MAX2424
MAX2426
MAX2424
MAX2426
T
A
= +25°C
T
A
= -40°C to +85°C
OSCILLATOR AND PRESCALER
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