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參數(shù)資料
| 型號： | MAX2150ETI |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 無繩電話/電話 |
| 英文描述： | 16-Bit Buffers/Drivers With 3-State Outputs 48-SSOP -40 to 85 |
| 中文描述： | TELECOM, CELLULAR, RF AND BASEBAND CIRCUIT, QCC28 |
| 封裝： | 5 X 5 MM, 0.90 MM HEIGHT, QFN-28 |
| 文件頁數(shù)： | 12/16頁 |
| 文件大小： | 357K |
| 代理商： | MAX2150ETI |
M
Power-Supply (V
CC
) Bypassing
Proper voltage-supply bypassing is essential to reduce
the spurious emissions mentioned above. It is recom-
mended that each V
CC
pin be bypassed independently
and share no common vias with any other ground con-
nection. See the
Typical Operating Circuit
for suggest-
ed bypass component values.
Wideband I/Q Modulator with Sigma-Delta
Fractional-N Synthesizer
12
______________________________________________________________________________________
BIT ID
BIT
NAME
PWR-UP
STATE
BIT LOCATION
0 = LSB
FUNCTION
CPX
CP_MULT
1
0
A logic high doubles the charge pump current selected through registers
CP1 and CP0. Logic low sets the charge-pump current to the value
selected by registers CP1 and CP0.
Unused.
High enables the VCO buffer. Low disables this output.
XX
BE
XX
XX
1
1
2
BUFEN
TE
TXEN
1
3
Low enables SW_MUTE mode, which shuts down the RF circuits while
leaving the 3-wire interface, register, and PLL circuits active.
PD
PWDN
0
4
Low enables register-based shutdown. This mode shuts down all circuits
except the 3-wire interface and internal registers.
INT
INT_MODE
0
5
Logic high disables the sigma-delta modulator. Logic low enables the
sigma-delta modulator for normal operation.
Table 6. Control Register
HW PINS
SOFTWARE CONTROL
BITS
PWDN
TXEN
H
MODE
SHDN
H
TXEN
H
SYNEN
H
BUFEN
H/L
BUFEN
H/L
DESCRIPTION
TX
H
All circuits active.
MOD
H
H
L
H/L
H
H
H/L
Modulator circuits active. Synthesizer
blocks disabled. Mode is used with external
PLL circuit.
SYNTH
H
L
H
H/L
H
X
H/L
Serial interface and synthesizer blocks
active. RF and modulator blocks disabled.
Mode is used to gate RF ON/OFF with
external logic control.
SW_MUTE
H
H
H
H/L
H
L
H/L
Serial interface and synthesizer blocks all
active. Modulator blocks disabled. Mode is
used to gate RF ON/OFF with software
control.
HW_SHDN
L
X
X
X
X
X
X
All circuits disabled. Lowest current mode
of operation.
SW_SHDN
H
X
X
X
L
X
X
Serial interface and registers active, all
other circuits inactive regardless of the
state of the HW pins with the exception of
HW_SHDN.
Table 7. Device Modes
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| MAX2150ETI+ | 功能描述:調(diào)節(jié)器/解調(diào)器 I/Q Mod w/Sig Delt Fractional-N Synth RoHS:否 制造商:Texas Instruments 封裝 / 箱體:PVQFN-N24 封裝:Reel |
| MAX2150ETI+T | 功能描述:調(diào)節(jié)器/解調(diào)器 I/Q Mod w/Sig Delt Fractional-N Synth RoHS:否 制造商:Texas Instruments 封裝 / 箱體:PVQFN-N24 封裝:Reel |
| MAX2150ETI-D | 制造商:Maxim Integrated Products 功能描述:WIDEBAND I/Q MODULATOR WITH SIGMA-DELTA FRACT - Rail/Tube |
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