U2894B Datasheet, PDF (2/16 Pages) TEMIC Semiconductors – Modulation PLL for GSM, DCS and PCS Systems

U2894B
Ordering Information
Extended Type Number
U2894B-AFSG3
Package
SSO28
Remarks
Taped and reeled
Pin Description
I1
28 Q
NI 2
27 ^NQ
MDLO 3
26 _VS3
GND 4
25 MIXO
MDO ⁵
NMDO ₆
24 _GND
23 NRF
VS1 ⁷
22 _RF
VSP 8
21 VS2
CPO 9
GNDP 10
20 _MIXLO
19 _PU
CPC 11
18 _GND
PUMIX 12
17 _NND
RD ¹³
16 _ND
NRD ¹⁴
15 _MC
12495
Figure 2. Pinning
Pin
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ₁
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ 2
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ³
4
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ₅
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ₆
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ₇
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ₈
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ₉
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ 10
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ¹¹
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ₁₂
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ₁₃
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ₁₄
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ₁₅
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ 16
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ¹⁷
18
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ₁₉
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ₂₀
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ₂₁
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ 22
23
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ₂₄
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ₂₅
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ₂₆
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ₂₇
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ₂₈
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ ₁₎
Symbol
I
NI
MDLO
GND ¹⁾
MDO
NMDO
VS1 ³⁾
VSP
CPO
GNDP ²⁾
CPC
PUMIX
RD
NRD
MC
ND
NND
GND ¹⁾
PU
MIXLO
VS2 ³⁾
RF
NRF
GND ¹⁾
MIXO
VS3 ³⁾
NQ
Q
Function
In-phase baseband input
Complementary to I
I/Q-modulator LO input
Negative supply
I/Q-modulator output
Complementary to MDO
Positive supply (I/Q MOD)
Pos. supply charge pump
Charge-pump output
Neg. supply charge pump
Charge-pump current control
(input)
Power-up, mixer only
R-divider input
Complementary to RD
Mode control
N-divider input
Complementary to ND
Negative supply
Power-up, whole chip except
mixer
Mixer LO input
Positive supply (MISC.)
Mixer RF-input
Complementary to RF
Negative supply
Mixer output
Positive supply (mixer)
Complementary to Q
Quad.-phase baseband input
All GND pins must be connected to GND
potential. No DC voltage between GND pins!
2)
vMax. voltage between GNDP and GND pins
200 mV
3)
v ^{The maximum permissible voltage difference}
between pins VS1, VS2 and VS3 is 200 mV.
2 (16)
Rev. A4, 30-Sep-98