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U2894B Datasheet, PDF (4/16 Pages) TEMIC Semiconductors – Modulation PLL for GSM, DCS and PCS Systems | |||
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U2894B
Electrical Characteristics (continued)
Tamb = 25°C, VS = 2.7 to 5.5 V
Parameters
Test Conditions / Pin
Symbol
Min. Typ.
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Phase-frequency detector (PFD)
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ PFD operation
fND = 450 MHz, N = 2
fPFD
50
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ fRD = 450 MHz, R = 2
Frequency comparison fND = 600 MHz, N = 2
fFD
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ only 3)
fRD = 450 MHz, R = 2
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ I/Q modulator baseband inputs I, NI & Q, NQ
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ DC voltage
Referred to GND
VI, VNI, VQ, VNQ 1.35 VS1/2
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ MD_IQ
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ AC voltage 4)
Frequency range
Referred to GND
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Differential (preferres)
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ I/Q modulator LO input MDLO
fIO
ACI, ACNI,
ACQ, ACNQ
ACDI, ACDQ
DC
200
400
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ MDLO
Frequency range
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Input impedance
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Input level
Active & standby
W 50- source
I/Q modulator outputs MDO, NMDO
fMDLO
ZMDLO
PMDLO
50
250
â11
â8
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ DC current
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Voltage compliance
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ MDO output level
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ (differential)
VMDO, VNMDO = VS
VMDO, VNMDO = VC
W 500 to VS 5)
IMDO, INMDO
2.4
VCMDO, VCNMDO VS â 0.7
PMDO
120
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Carrier suppression 5)
Sideband suppression 5)
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ IF spurious 5)
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Noise 5)
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Frequency range
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Mixer (900 MHz)
fLO ± 3 fmod
@ 400 kHz off carrier
CSMDO
SSMDO
SPMDO
NMDO
fMDO
â32
â35
â35
â40
â50
50
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ RF input level
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ LO-spurious at
RF/NRF port
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ MIXLO input level
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ W MIXO(100- load)
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Output level 6)
ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃ Carrier suppression
900 MHz
@ P9MIXLO = â10 dBm
@ P9RF = â15 dBm
0.05 to 2 GHz
Frequency range
@ P9MIXLO = â15 dBm
@ P9MIXLO = â15 dBm
P9RF
SP9RF
P9MIXLO
fMIXO
P9MIXO
CS9MIXO
â23
â22
50
70
â20
Max.
225
300
VS1/2
+ 0.1
1
450
â5
5.5
150
â45
â115
450
â17
â40
â12
450
Unit
MHz
MHz
V
MHz
mVpp
mVpp
MHz
W
dBm
mA
V
mVrms
dBc
dBc
dBc
dBc/Hz
MHz
dBm
dBm
dBm
MHz
mVrms
dBc
3)
PFD can be used as a frequency comparator until 300 MHz for loop acquisition
4)
Single-ended operation (complementary baseband input is AC-grounded) leads to reduced linearity
(degrading suppression of odd harmonics)
5)
With typical drive levels at MDLO- & I/Q-inputs
6)
â1 dB compression point (CP-1)
4 (16)
Rev. A4, 30-Sep-98
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