PHILIPS UMA1015M

INTEGRATED CIRCUITS
DATA SHEET
UMA1015M
Low-power dual frequency
synthesizer for radio
communications
Product specification
Supersedes data of October 1994
File under Integrated Circuits, IC03
1995 Jun 22
Philips Semiconductors
Product specification
Low-power dual frequency synthesizer
for radio communications
UMA1015M
FEATURES
GENERAL DESCRIPTION
• Two fully programmable RF dividers up to 1.1 GHz
The UMA1015M is a low-power dual frequency
synthesizer for radio communications which operates in
the 50 to 1100 MHz frequency range. Each synthesizer
consists of a fully programmable main divider, a phase and
frequency detector and a charge pump. There is a fully
programmable reference divider common to both
synthesizers which operates up to 35 MHz. The device is
programmed via a 3-wire serial bus which operates up to
10 MHz. The charge pump currents (gains) are fixed by an
external resistance at pin 20 (ISET). The BiCMOS device is
designed to operate from 2.6 V (3 Ni-Cd cells) to 5.5 V at
low current. Digital supplies VDD1 and VDD2 must be at the
same potential. The charge pump supply (VCC) can be
provided by an external source or on-chip voltage doubler.
VCC must be equal to or higher than VDD1. Each
synthesizer can be powered-down independently via the
serial bus to save current. It is also possible to power-down
the device via the HPD input (pin 5).
• Fully programmable reference divider up to 35 MHz
• 2 : 1 or 1 : 1 ratio of selectable reference frequencies
• Fast three-line serial bus interface
• Adjustable phase comparator gain
• Programmable out-of-lock indication for both loops
• On-chip voltage doubler
• Low current consumption from 3 V supply
• Separate power-down mode for each synthesizer
• Up to 4 open-drain output ports.
APPLICATIONS
• Cordless telephone
• Hand-held mobile radio.
QUICK REFERENCE DATA
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
VDD1, VDD2
digital supply voltage
VDD1 = VDD2
2.6
−
5.5
V
VCC
charge pump supply
voltage
external supply; doubler
disabled; VCC ≥ VDD
2.6
−
6.0
V
VCCvd
charge pump supply from
voltage doubler
doubler enabled
−
2VDD1 − 0.6
6.0
V
IDDO1 +IDDO2 +
ICCO
operating supply current
both synthesizers ON; doubler
disabled; VDD1 = VDD2 = 5.5 V
−
9.6
−
mA
IDD1pd + IDD2pd
+ ICCpd
current in power-down
mode per supply
doubler disabled;
VDD1 = VDD2 = 5.5 V
−
0.01
−
mA
IDD1pd
current in power-down
mode from supply VDD
doubler enabled;
VDD1 = VDD2 = 3 V
−
0.15
−
mA
fRFA, fRFB
RF input frequency for
each synthesizer
50
−
1100
MHz
fXTALIN
crystal input frequency
3
−
35
MHz
fpc(min)
minimum phase
comparator frequency
fRF = 50 to 1100 MHz;
fXTALIN = 3 to 35 MHz
−
10
−
kHz
fpc(max)
maximum phase
comparator frequency
fRF = 50 to 1100 MHz;
fXTALIN = 3 to 35 MHz
−
750
−
kHz
Tamb
operating ambient
temperature
synthesizer A
2.6 V ≤ VDD ≤ 5.5 V
−30
−
+85
°C
synthesizer B
2.6 V ≤ VDD ≤ 4.5 V
−30
−
+85
°C
synthesizer B
2.6 V ≤ VDD ≤ 5.0 V
0
−
+85
°C
1995 Jun 22
2
Philips Semiconductors
Product specification
Low-power dual frequency synthesizer
for radio communications
UMA1015M
ORDERING INFORMATION
PACKAGE
TYPE NUMBER
UMA1015M/C2
PINS
PIN POSITION
MATERIAL
CODE
20
SSOP20
plastic
SOT266-1
BLOCK DIAGRAM
BB
BB
Fig.1 Block diagram.
1995 Jun 22
3
Philips Semiconductors
Product specification
Low-power dual frequency synthesizer
for radio communications
UMA1015M
PINNING
SYMBOL
PIN
DESCRIPTION
P1
1
output Port 1
P2
2
output Port 2
CPA
3
charge-pump output synthesizer A
VDD1
4
digital supply voltage 1
HPD
5
hardware power-down
(input LOW = power-down)
RFA
6
RF input synthesizer A
DGND
7
digital ground
fXTALIN
8
common crystal frequency input from
TCXO
P3
9
output Port 3
fXTALO
10
open-drain output of fXTAL signal
CLK
11
programming bus clock input
DATA
12
programming bus data input
E
13
programming bus enable input
(active LOW)
VDD2
14
digital supply voltage 2
RFB
15
RF input synthesizer B
AGND
16
analog ground to charge pumps
CPB
17
charge pump output synthesizer B
VCC
18
analog supply to charge pump;
external or voltage doubler output
P0/OOL
19
Port output 0/out-of-lock output
ISET
20
regulator pin to set charge-pump
currents
Fig.2 Pin configuration.
pre-amplifier to provide the clock input for the reference
divider. This clock signal is also buffered and output on pin
fXTALO (open drain). An extra divide-by-2 block allows a
reference comparison frequency for synthesizer B to be
half that of synthesizer A. This feature is selectable using
the program bit SR. If the programmed reference divider
ratio is R then the ratio for each synthesizer is as given in
Table 1.
FUNCTIONAL DESCRIPTION
Main dividers
Each synthesizer has a fully programmable 17-bit main
divider. The RF input drives a pre-amplifier to provide the
clock to the first divider bit. The pre-amplifier has a high
input impedance, dominated by pin and pad capacitance.
The circuit operates with signal levels from below
50 mV (RMS) up to 250 mV (RMS), and at frequencies up
to 1.1 GHz. The high frequency sections of the divider are
implemented using bipolar transistors, while the slower
section uses CMOS technology. The range of division
ratios is 512 to 131071.
The range for the division ratio R is 8 to 4095. Opposite
edges of the divider output are used to drive the phase
detectors to ensure that active edges arrive at the phase
detectors of each synthesizer at different times. This
minimizes the potential for interference between the
charge pumps of each loop. The reference divider consists
of CMOS devices operating beyond 35 MHz.
Reference divider
There is a common fully programmable 12-bit reference
divider for the two synthesizers. The input fXTALIN drives a
1995 Jun 22
4
Philips Semiconductors
Product specification
Low-power dual frequency synthesizer
for radio communications
Table 1
output is forced LOW). The lock condition output is
software selectable (see Table 4). An out-of-lock condition
is flagged when the phase error is greater than T00L, the
value of which is approximately equal to 80 cycles of the
relevant RF input. The out-of-lock flag is only released
after 8 consecutive reference cycles where the phase error
is less than T00L. The out-of-lock function can be disabled,
via the serial bus, and the pin P0/OOL can be used as an
output port. Three other port outputs P1, P2 and P3
(open-drain transistors) are also available.
Synthesizer ratio of reference divider
SR
SYNTHESIZER A
SYNTHESIZER B
0
R
R
1
R
2R
Phase comparators
For each synthesizer, the outputs of the main and
reference dividers drive a phase comparator where a
charge pump produces phase error current pulses for
integration in an external loop filter. The charge pump
current is set by an external resistance RSET at pin ISET,
where a temperature-independent voltage of 1.2 V is
generated. RSET should be between 12 kΩ and 60 kΩ (to
give an ISET of 100 µA and 20 µA respectively).
The charge-pump current, ICP, can be programmed to be
either (12 × ISET) or (24 × ISET) with the maximum being
2.4 mA. The dead zone, caused by finite switching of
current pulses, is cancelled by an internal delay in the
phase detector thus giving improved linearity. The charge
pump has a separate supply, VCC, which helps to reduce
the interference on the charge pump output from other
parts of the circuit. Also, VCC can be higher than VDD1 if a
wider range on the VCO input is required. VCC must not be
less than VDD1.
Serial programming bus
A simple 3-line unidirectional serial bus is used to program
the circuit. The 3 lines are DATA, CLK and E (enable). The
data sent to the device is loaded in bursts framed by E.
Programming clock edges are ignored until E goes active
LOW. The programmed information is loaded into the
addressed latch when E returns inactive HIGH. This is
allowed when CLK is in either state without causing any
consequences to the register data. Only the last 21 bits
serially clocked into the device are retained within the
programming register. Additional leading bits are ignored,
and no check is made on the number of clock pulses. The
fully static CMOS design uses virtually no current when the
bus is inactive. It can always capture new programming
data even during power-down of both synthesizers.
Voltage doubler
However when either synthesizer A or synthesizer B or
both are powered-on, the presence of a TCXO signal is
required at pin 8 (fXTALIN) for correct programming.
If required, there is a voltage doubler on-chip to supply the
charge pumps at a higher level than the nominal available
supply. The doubler operates from the digital supply VDD1,
and is internally limited to a maximum output of 6 V.
An external capacitor is required on pin VCC for smoothing,
the capacitor required to develop the extra voltage is
integrated on-chip. To minimize the noise being introduced
to the charge pump output from the voltage doubler, the
doubler clock is suppressed (provided both loops are
in-lock) for the short time that the charge pumps are active.
The doubler clock (RF/64) is derived from whichever main
divider is operating (synthesizer A has priority). While both
synthesizers are powered down (and the doubler is
enabled), the doubler clock is supplied by a low-current
internal oscillator. The doubler can be disabled by
programming the bit VDON to logic 0, in order to allow an
external charge pump supply to be used.
Data format
Data is entered with the most significant bit first. The
leading bits make up the data field, while the trailing four
bits are an address field. The address bits are decoded on
the rising edge of E. This produces an internal load pulse
to store the data in the addressed latch. To ensure that
data is correctly loaded on first power-up, E should be held
LOW and only taken HIGH after having programmed an
appropriate register. To avoid erroneous divider ratios, the
pulse is inhibited during the period when data is read by
the frequency dividers. This condition is guaranteed by
respecting a minimum E pulse width after data transfer.
The data format and register bit allocations are shown in
Table 2.
Out-of-lock indication/output ports
There is a lock detector on-chip for each synthesizer. The
lock condition of each, or both loops, is output via an
open-drain transistor which drives the pin P0/OOL (when
out-of-lock, the transistor is turned on and therefore the
1995 Jun 22
UMA1015M
5
FIRST
REGISTER BIT ALLOCATION
p1
p2
p3
p4
p5
p6
dt16
dt15 dt14
X
X
VDON PO
OLA
OLB
0
0
SR
p8
p13
p14
p15
p16
p17
dt4
dt3
dt2
dt1
dt0
sPDA sPDB P3
P2
P1
X
X
0
0
0
1
SYNTHESIZER A MAIN DIVIDER COEFFICIENT
MA0
0
1
0
0
R11
R0
0
1
0
1
MB0
0
1
1
0
0
0
0
0
dt13 dt12
MA16
0
p7
0
MB16
p9
p10
p11
p12
LAST
DATA FIELD
CRA
CRB
X
X
REFERENCE DIVIDER COEFFICIENT
SYNTHESIZER B MAIN DIVIDER COEFFICIENT
RESERVED FOR
TEST(1)
p18
p19
p20
p21
ADDRESS
Note
1. The test register should not be programmed with any other values except all zeros for normal operation.
Table 3
Bit allocation description
SYMBOL
DESCRIPTION
6
sPDA, sPDB
software power-down for synthesizers A and B (0 = power-down)
P3, P2, P1 and P0
bits output to pins 1, 2, 9 and 19 (1 = high impedance)
VDON
voltage doubler enable (1 = doubler enabled)
OLA, OLB
out-of-lock select; selects signal output to pin 19 (see Table 4)
CRA, CRB
charge pump A/B current to ISET ratio select (see Table 5)
SR
reference frequency ratio select (see Table 6)
Table 4
Out-of-lock select
OLA
OLB
OUTPUT AT PIN 19
0
0
P0
0
1
lock status of loop B; OOLB
1
0
lock status of loop A; OOLA
1
1
logic OR function of loops A and B
Table 6
Reference division ratio
CRA/CRB
CURRENT AT PUMP
SR
SYNTHESIZER A
SYNTHESIZER B
0
ICP = 12 × ISET
0
R
R
1
ICP = 24 × ISET
1
R
2R
Product specification
Charge pump current ratio
UMA1015M
Table 5
Philips Semiconductors
Bit allocation
Low-power dual frequency synthesizer
for radio communications
1995 Jun 22
Table 2
Philips Semiconductors
Product specification
Low-power dual frequency synthesizer
for radio communications
UMA1015M
switched off, only the voltage doubler (if enabled) will
remain active drawing a reduced current. An internal
oscillator will drive the doubler in this situation. If both
synthesizers have been in a power-down condition, then
when one or both synthesizers are reactivated, the
reference and main dividers restart in such a way as to
avoid large random phase errors at the phase comparator.
Power-down modes
The device can be powered down either via pin HPD
(active LOW = power-down) or via the serial bus (bits
SPDA and SPDB, logic 0 = power-down). The
synthesizers are powered up when both hardware and
software Power-down signals are at logic 1. When only
one synthesizer is powered down, the functions common
to both will be maintained. When both synthesizers are
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
SYMBOL
PARAMETER
MIN.
MAX.
UNIT
VDD1, VDD2
DC range of digital power supply voltage with respect
to DGND
−0.3
+6.0
V
VCC
DC charge pump supply voltage with respect to AGND −0.3
+6.0
V
∆VCC-DD
difference in voltage between VCC and VDD1, VDD2
−0.3
+6.0
V
Vn
DC voltage at pins 1, 2, 5, 6, 8 to 15, 19 and 20 with
respect to DGND
−0.3
VDD1 + 0.3
V
V3, 17
DC voltage at pins 3 and 17 with respect to AGND
−0.3
VCC + 0.3
V
∆VGND
difference in voltage between AGND and DGND
(these pins should be connected together)
−0.3
+0.3
V
Tstg
storage temperature
−55
+125
°C
Tamb
operating ambient temperature
−30
+85
°C
HANDLING
Inputs and outputs are protected against electrostatic discharge in normal handling. However, to be totally safe, it is
desirable to take normal precautions appropriate to handling MOS devices.
1995 Jun 22
7
Philips Semiconductors
Product specification
Low-power dual frequency synthesizer
for radio communications
UMA1015M
CHARACTERISTICS
VDD1 = VDD2 = 2.6 to 5.5 V; VCC = 2.6 to 6.0 V; Tamb = 25 °C; unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Supply; (VDD1, VDD2 and VCC) voltage doubler disabled, external supply on VCC
VDD1, VDD2 digital supply voltage
VDD1 = VDD2
2.6
−
5.5
V
IDD1 + IDD2
fXTAL = 12.8 MHz;
both synthesizers on;
VDD1 = VDD2 = 3 V
−
8.5
−
mA
fXTAL = 12.8 MHz;
both synthesizers on;
VDD1 = VDD2 = 5.5 V
−
−
12.5
mA
fXTAL = 12.8 MHz; one
synthesizer powered down;
VDD1 = VDD2 = 3 V
−
5.5
−
mA
fXTAL = 12.8 MHz; one
synthesizer powered down;
VDD1 = VDD2 = 5.5 V
−
−
7.5
mA
IDDpda,
IDDpdb
total digital supply current
from VDD1 and VDD2
total digital supply current
from VDD1 and VDD2 with
one synthesizer in
power-down mode
IDDpd
digital supply current in
power-down mode
both synthesizers powered
down; VHPD = 0 V
−
−
60
µA
VCC
charge pump supply
voltage
VCC ≥ VDD
2.6
−
6.0
V
ICC
charge pump supply
current
both synthesizers on and in
lock; fref = 12.5 kHz
−
−
25
µA
ICCpd
charge pump supply
current in power-down
mode
both synthesizers powered
down
−
−
25
µA
8.5
12
mA
0.25
0.4
mA
Voltage doubler enabled
fXTAL = 12.8 MHz; both
−
synthesizers on and in lock;
VDD1 = 3 V;
fdoubler = 16 MHz
IDD
total digital supply current
from VDD1 and VDD2
IDDpd
total digital supply current both synthesizers powered
in power-down mode from down; VDD1 = 3 V;
VDD1 and VDD2
VHPD = 0 V
−
VCCvd
charge pump supply
voltage
2VDD1 − 1.2 2VDD1 − 0.6 6.0
1995 Jun 22
DC current drawn from
VCC = 50 µA
8
V
Philips Semiconductors
Product specification
Low-power dual frequency synthesizer
for radio communications
SYMBOL
PARAMETER
UMA1015M
CONDITIONS
MIN.
TYP.
MAX.
UNIT
RF main divider input; RFA and RFB
fRF
RF input frequency
VRF(rms)
RF input signal voltage
(RMS value; AC coupled)
50
−
1100
MHz
Rs = 50 Ω;
VDD1 = VDD2 = 2.6 to 3.5 V;
fRF = 400 to 1100 MHz
50
−
250
mV
Rs = 50 Ω;
VDD1 = VDD2 = 3.5 to 5.5 V;
fRF = 400 to 1100 MHz
100
−
250
mV
Rs = 50 Ω;
VDD1 = VDD2 = 2.6 to 5.5 V;
fRF = 50 to 400 MHz
150
−
400
mV
−
300
−
Ω
pF
ZI
input impedance
(real part)
fRF = 1 GHz;
indicative, not tested
CI
input capacitance
indicative, not tested
Rpm
principle main divider ratio
−
1
−
512
−
131071
3
−
35
MHz
100
−
500
mV
Reference divider input; fXTALIN
fXTALIN
reference input frequency
from crystal
VXTALIN(rms) sinusoidal input voltage
(RMS value)
ZI
input impedance
(real part)
fXTALIN = 12.8 MHz;
indicative, not tested
−
10
−
kΩ
CI
input capacitance
indicative, not tested
−
1
−
pF
Rrd
reference divider ratio
8
−
4095
RSET = 12 to 60 kΩ
−
1.2
−
V
RSET = 15 kΩ;
CRA/CRB = logic 1;
Icp = ISET × 24;
Vcp = 0.4 V to VCC − 0.5 V
1.4
1.9
2.4
mA
RSET = 15 kΩ;
CRA/CRB = logic 0;
Icp = ISET × 12;
Vcp = 0.4 V to VCC − 0.5 V
0.7
0.96
1.2
mA
Vcp = 0.5VCC
−5
−
+5
nA
Charge pump current setting resistor input; ISET
VSET
voltage output on ISET
Charge pump outputs; CPA and CPB
ICP
ILI
1995 Jun 22
charge pump sink or
source current
charge pump off leakage
current
9
Philips Semiconductors
Product specification
Low-power dual frequency synthesizer
for radio communications
SYMBOL
PARAMETER
UMA1015M
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Logic input signal levels; DATA, CLK, E and HPD
VIH
HIGH level input voltage
at logic 1
0.7VDD1
−
VDD1 + 0.3
V
VIL
LOW level input voltage
at logic 0
−0.3
−
0.3VDD1
V
Ibias
input bias currents
at logic 1 or logic 0
−5
−
+5
µA
CI
input capacitance
indicative, not tested
−
1
−
pF
−
0.4
V
Port outputs/Out-of-lock; P0/OOL, P1, P2, P3 and fXTALO - open drain outputs
VOL
LOW level output voltage
−
Isink = 0.4 mA
SERIAL TIMING CHARACTERISTICS
VDD1 = 3 V; Tamb = 25 °C unless otherwise specified.
SYMBOL
PARAMETER
MIN.
TYP.
MAX.
UNIT
Serial programming clock; CLK
tr, tf
input rise and fall times
−
10
40
ns
tcy
clock period
100
−
−
ns
Enable programming; E
tSTART
delay to rising clock edge
40
−
−
ns
tEND
delay from last falling clock edge
−20
−
−
ns
tW
minimum inactive pulse width
4000
−
−
ns
tSU;E
enable set-up time to next clock edge
20
−
−
ns
Register serial input data; DATA
tSU;DAT
input data to clock set-up time
20
−
−
ns
tHD;DAT
input data to clock hold time
20
−
−
ns
Fig.3 Serial bus timing diagram.
1995 Jun 22
10
Philips Semiconductors
Product specification
Low-power dual frequency synthesizer
for radio communications
UMA1015M
TYPICAL PERFORMANCE CHARACTERISTICS
(1) Tamb = +85 °C.
(2) Tamb = +25 °C.
(3) Tamb = −30 °C.
Fig.4 IDD as a function of VDD with both synthesizers on and voltage doubler disabled.
RSET = 15 kΩ; CRA = 1.
(1) VCC = 2.7 V.
(2) VCC = 6.0 V.
Fig.5 Charge pump current as a function of CPA voltage.
1995 Jun 22
11
Philips Semiconductors
Product specification
Low-power dual frequency synthesizer
for radio communications
RSET = 15 kΩ; CRA = 1.
(1) Tamb = +85 °C.
(2) Tamb = +25 °C.
(3) Tamb = −30 °C.
Fig.6 Charge pump 3-state current as a function of CPA voltage.
fXTALIN externally terminated by 50 Ω load; AC-coupled.
(1) VDD = 5.5 V.
(2) VDD = 2.7 V.
Fig.7 Crystal input sensitivity as a function of input frequency.
1995 Jun 22
12
UMA1015M
Philips Semiconductors
Product specification
Low-power dual frequency synthesizer
for radio communications
UMA1015M
fXTALIN externally terminated by 50 Ω load; AC-coupled.
(1) Tamb = −30 °C.
(2) Tamb = +25 °C.
(3) Tamb = +85 °C.
Fig.8 Crystal input sensitivity as a function of input frequency with VDD = 5.5 V.
RF input externally terminated by 50 Ω load; AC-coupled.
(1) VDD = 5.5 V.
(2) VDD = 2.7 V.
Fig.9 RF input sensitivity as a function of input frequency.
1995 Jun 22
13
Philips Semiconductors
Product specification
Low-power dual frequency synthesizer
for radio communications
UMA1015M
RF input externally terminated by 50 Ω load; AC-coupled.
(1) Tamb = −30 °C.
(2) Tamb = +25 °C.
(3) Tamb = +85 °C.
Fig.10 RF input sensitivity as a function of input frequency with VDD = 5.5 V.
(1) Tamb = −30 °C.
(2) Tamb = +25 °C.
(3) Tamb = +85 °C.
Fig.11 Typical charge pump supply voltage as a function of VDD voltage with voltage doubler enabled.
1995 Jun 22
14
Philips Semiconductors
Product specification
Low-power dual frequency synthesizer
for radio communications
UMA1015M
1
handbook, full pagewidth
0.5
2
0.2
5
10
+j
0.2
0
0.5
1
5
10
∞
4
–j
3
1
0.2
5
2
0.5
(1)
(2)
(3)
(4)
10
2
68.316 Ω, −92.457 Ω at 1.1 GHz.
85.914 Ω, −152.08 Ω at 800 MHz.
102.83 Ω, −354.66 Ω at 400 MHz.
853.75 Ω, −2.7735 kΩ at 50 MHz.
MBE019
1
Fig.12 Input impedance as a function of input frequency; synthesizer A.
1
handbook, full pagewidth
0.5
2
0.2
5
10
+j
0
0.2
0.5
1
5
10
∞
4
–j
3
10
2
1
5
0.2
2
0.5
(1)
(2)
(3)
(4)
69.293 Ω, −78.027 Ω at 1.1 GHz.
100.2 Ω, −148.37 Ω at 800 MHz.
128.22 Ω, −378.81 Ω at 400 MHz.
674.25 Ω, −3.06 kΩ at 50 MHz.
1
MBE020
Fig.13 Input impedance as a function of input frequency; synthesizer B.
1995 Jun 22
15
Philips Semiconductors
Product specification
Low-power dual frequency synthesizer
for radio communications
APPLICATION INFORMATION
Fig.14 Typical application block diagram.
1995 Jun 22
16
UMA1015M
BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB
BBBBBBBBBBBB
BBBBBBBBBBBBBBBBBBBBB
BBBBBBBBBBBBBBBBBBBBBB
BBBBBBBBBBB
BBB
BB
BB
BB
BB
BB
BB
BB
BB
B
B
B
B
B
B
B
B
B
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17
Philips Semiconductors
Product specification
UMA1015M
Fig.15 Typical CT1 application.
Low-power dual frequency synthesizer
for radio communications
1995 Jun 22
Transmit frequency = 959 MHz.
Receive frequency = 914 MHz.
1st IF = 58.1125 MHz.
2nd IF = 455 MHz.
VCO sensitivity = 2 MHz/V.
Channel spacing = 12.5 kHz.
Charge pump gain (CPA = CPB) = 1 mA/cycle.
Philips Semiconductors
Product specification
Low-power dual frequency synthesizer
for radio communications
UMA1015M
PACKAGE OUTLINE
SSOP20: plastic shrink small outline package; 20 leads; body width 4.4 mm
D
SOT266-1
E
A
X
c
y
HE
v M A
Z
11
20
Q
A2
A
(A 3)
A1
pin 1 index
θ
Lp
L
1
10
detail X
w M
bp
e
0
2.5
5 mm
scale
DIMENSIONS (mm are the original dimensions)
UNIT
A
max.
A1
A2
A3
bp
c
D (1)
E (1)
e
HE
L
Lp
Q
v
w
y
Z (1)
θ
mm
1.5
0.15
0
1.4
1.2
0.25
0.32
0.20
0.20
0.13
6.6
6.4
4.5
4.3
0.65
6.6
6.2
1.0
0.75
0.45
0.65
0.45
0.2
0.13
0.1
0.48
0.18
10
0o
Note
1. Plastic or metal protrusions of 0.20 mm maximum per side are not included.
OUTLINE
VERSION
REFERENCES
IEC
JEDEC
EIAJ
ISSUE DATE
90-04-05
95-02-25
SOT266-1
1995 Jun 22
EUROPEAN
PROJECTION
18
o
Philips Semiconductors
Product specification
Low-power dual frequency synthesizer
for radio communications
UMA1015M
SOLDERING SO or SSOP
SSOP
Introduction
Wave soldering is not recommended for SSOP packages.
This is because of the likelihood of solder bridging due to
closely-spaced leads and the possibility of incomplete
solder penetration in multi-lead devices.
There is no soldering method that is ideal for all IC
packages. Wave soldering is often preferred when
through-hole and surface mounted components are mixed
on one printed-circuit board. However, wave soldering is
not always suitable for surface mounted ICs, or for
printed-circuits with high population densities. In these
cases reflow soldering is often used.
If wave soldering cannot be avoided, the following
conditions must be observed:
• A double-wave (a turbulent wave with high upward
pressure followed by a smooth laminar wave)
soldering technique should be used.
This text gives a very brief insight to a complex technology.
A more in-depth account of soldering ICs can be found in
our “IC Package Databook” (order code 9398 652 90011).
• The longitudinal axis of the package footprint must
be parallel to the solder flow and must incorporate
solder thieves at the downstream end.
Reflow soldering
Even with these conditions, only consider wave
soldering SSOP packages that have a body width of
4.4 mm, that is SSOP16 (SOT369-1) or
SSOP20 (SOT266-1).
Reflow soldering techniques are suitable for all SO and
SSOP packages.
Reflow soldering requires solder paste (a suspension of
fine solder particles, flux and binding agent) to be applied
to the printed-circuit board by screen printing, stencilling or
pressure-syringe dispensing before package placement.
METHOD (SO OR SSOP)
During placement and before soldering, the package must
be fixed with a droplet of adhesive. The adhesive can be
applied by screen printing, pin transfer or syringe
dispensing. The package can be soldered after the
adhesive is cured.
Several techniques exist for reflowing; for example,
thermal conduction by heated belt. Dwell times vary
between 50 and 300 seconds depending on heating
method. Typical reflow temperatures range from 215 to
250 °C.
Maximum permissible solder temperature is 260 °C, and
maximum duration of package immersion in solder is
10 seconds, if cooled to less than 150 °C within
6 seconds. Typical dwell time is 4 seconds at 250 °C.
Preheating is necessary to dry the paste and evaporate
the binding agent. Preheating duration: 45 minutes at
45 °C.
A mildly-activated flux will eliminate the need for removal
of corrosive residues in most applications.
Wave soldering
SO
Repairing soldered joints
Wave soldering techniques can be used for all SO
packages if the following conditions are observed:
Fix the component by first soldering two diagonallyopposite end leads. Use only a low voltage soldering iron
(less than 24 V) applied to the flat part of the lead. Contact
time must be limited to 10 seconds at up to 300 °C. When
using a dedicated G, all other leads can be soldered in one
operation within 2 to 5 seconds at 270 to 320 °C.
• A double-wave (a turbulent wave with high upward
pressure followed by a smooth laminar wave) soldering
technique should be used.
• The longitudinal axis of the package footprint must be
parallel to the solder flow.
• The package footprint must incorporate solder thieves at
the downstream end.
1995 Jun 22
19
Philips Semiconductors
Product specification
Low-power dual frequency synthesizer
for radio communications
UMA1015M
DEFINITIONS
Data sheet status
Objective specification
This data sheet contains target or goal specifications for product development.
Preliminary specification
This data sheet contains preliminary data; supplementary data may be published later.
Product specification
This data sheet contains final product specifications.
Limiting values
Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or
more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation
of the device at these or at any other conditions above those given in the Characteristics sections of the specification
is not implied. Exposure to limiting values for extended periods may affect device reliability.
Application information
Where application information is given, it is advisory and does not form part of the specification.
LIFE SUPPORT APPLICATIONS
These products are not designed for use in life support appliances, devices, or systems where malfunction of these
products can reasonably be expected to result in personal injury. Philips customers using or selling these products for
use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such
improper use or sale.
1995 Jun 22
20
Philips Semiconductors
Product specification
Low-power dual frequency synthesizer
for radio communications
NOTES
1995 Jun 22
21
UMA1015M
Philips Semiconductors
Product specification
Low-power dual frequency synthesizer
for radio communications
NOTES
1995 Jun 22
22
UMA1015M
Philips Semiconductors
Product specification
Low-power dual frequency synthesizer
for radio communications
NOTES
1995 Jun 22
23
UMA1015M
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SCD40
© Philips Electronics N.V. 1995
All rights are reserved. Reproduction in whole or in part is prohibited without the
prior written consent of the copyright owner.
The information presented in this document does not form part of any quotation
or contract, is believed to be accurate and reliable and may be changed without
notice. No liability will be accepted by the publisher for any consequence of its
use. Publication thereof does not convey nor imply any license under patent- or
other industrial or intellectual property rights.
Printed in The Netherlands
413061/1500/03/pp24
Document order number:
Date of release: 1995 Jun 22
9397 750 00177