Sony CXA3067M Datasheet
—1—
E97657A89-TE
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
Absolute Maximum Ratings (Ta=25 °C)
• Supply voltage VCC –0.3 to +5.5 V
• Storage temperature Tstg –55 to +150 °C
Operating Conditions
• Supply voltage VCC 4.75 to 5.3 V
• Operating temperature Topr –25 to +75 °C
Description
The CXA3067M is an integrated circuit designed
for CATV wide band FSK receiver. This monolithic
IC is composed of local oscillator, double balanced
mixer, limiter, FM detector, data shaper and PLL
circuit in a single chip.
Features
• Built in PLL
• 3 bits 3 states frequency selection
• Applied for 4 reference frequency
(7.15625/7.15909/14.3125/14.31818 MHz)
• Compatible with external reference clock and X’tal
oscillator
• Balanced oscillator and double balanced mixer for
low L.O. leakage
• Low power consumption
• SOP 30 pin package
Function
• Oscillator
• Mixer
• PLL
• Limiter
• FSK detector
• Data shaper
Applications
FSK receiver for CATV
Structure
Bipolar silicon monolithic IC
Wide Band FSK Receiver
30 pin SOP (Plastic)
CXA3067M
—2—
CXA3067M
Pin configuration and Block diagram
8 91 2 10 11 12 13 14 15654 73
22 21 20 19 18 1727 26 23 1629 2830 25 24
FSET2
FSET3
REFSW
MIXIN
RFVCC
RFEM
RFIN
RFGND
IFGND
IFVCC
NOUT
POUT
LF2
LF1
DETIN
REFIN
XTAL
FSET1
RDSW
CPLF
VT
OSC1
OSC2
DGND
MIXOUT
DVCC
LIMIN
BYP
GND
LIMOUT
V.REG
FREQ
SELECT
PHASE
DET
MAIN
DIVIDER
REF
DIVIDER
CHARGE
PUMP
SCALER
REF
OSC
DATA
SHAPER
DET
MIX
OSC
LIM
—3—
CXA3067M
Pin Description and Equivalent Circuit
Pin
Symbol
Typical
Equivalent circuit Description
No. voltage (V)
1
2
3
4
5
6
REFIN
XTAL
FSET1
RDSW
CPLF
VT
3.4
4.0
2.5
(OPEN)
3.0
(OPEN)
2.0
0.3 to VCC
500
DVCC
1
2
11
9
DGND
3
11
9
20k
20k
DVCC
DGND
11
4
9
25k
20k
30k
DVCC
DGND
DVCC
5
6
10k
100
100
11
9
DGND
External clock input
and X’tal connection for
reference oscillator.
X’tal connection for
reference oscillator.
The pin for channel selection.
The condition of pin 3 has
3 states.
Connect to 5 V source for “Hi”
selection and connect to GND for
“Low” selection and leave open.
Reference frequency selection.
Connect to GND when reference
frequency is 14.3125 MHz or
14.31818 MHz and leave open
when reference frequency is
7.15625 MHz or 7.15909 MHz.
Charge pump output.
Connect to loop filter.
Connect to loop filter.
OSC tuning voltage output.
—4—
CXA3067M
Pin
Symbol
Typical
Equivalent circuit Description
No. voltage (V)
7
8
9
10
11
12
13
14
15
OSC1
OSC2
DGND
MIXOUT
DVCC
LIMIN
BYP
GND
LIMOUT
3.7
3.7
0
4.0
5
2.4
2.4
0
3.1
26
87
23
RFVCC
RFGND
700 700
3k
3k
26
10
23
330 330
RFVCC
RFGND
12
13
10k
330
10k
21
IFVCC
22
IFGND
IFVCC
21
15
IFGND
22
Oscillator.
PLL circuit GND.
Mixer output.
Output impedance is 330 Ω.
PLL circuit power supply.
Limiter input.
Input impedance is 330 Ω.
GND.
Limiter output.
—5—
CXA3067M
Pin
Symbol
Typical
Equivalent circuit Description
No. voltage (V)
16
17
18
19
20
21
22
23
DETIN
LP1
LP2
POUT
NOUT
IFVCC
IFGND
RFGND
5.0
4.2
4.2
4.1
(Hi)
0.22
(Low)
4.1
(Hi)
0.22
(Low)
5.0
0
0
21
IFVCC
16
32k
22
IFGND
21
18
17
IFVCC
IFGND
12p 12p
22
21
19
IFVCC
IFGND
22
50
21
20
22
IFVCC
IFGND
50
Detector input.
Connect to a discriminator.
The capacitor is connected
between pins 17 and 18 for
the filter.
FSK data output.
Pins 19 and 20 are each
other reversal condition.
Power supply for limiter, detector,
data shaper circuit.
GND for limiter, detector,
data shaper circuit.
GND for RFamp, Mixer,
oscillator circuit.
—6—
CXA3067M
Pin
Symbol
Typical
Equivalent circuit Description
No. voltage (V)
24
25
27
26
28
29
30
RFIN
RFEM
MIXIN
RFVCC
REFSW
FSET3
FSET2
1.9
1.1
5.0
5.0
0.7
(OPEN)
2.5
(OPEN)
2.5
(OPEN)
RFVCC
26
MIX
25
27
233
5k
24
RFGND
23
11
29
9
20k
20k
DVCC
DGND
28
DVCC
DGND
11
9
11
9
20k
20k
DVCC
DGND
30
RFamp input.
Gain adjustment.
Normally, by-pass capacitor is
connected at pin 25 to GND.
RFamp output and mixer input.
Power supply for RFamp, mixer,
oscillator circuit.
Reference frequency selection.
Decoupling capacitor is
connected at pin 28 to GND
when reference frequency is
7.15909 MHz or 14.31818 MHz
and pin 28 is connected to GND
directly when reference
frequency is 7.15625 MHz or
14.3125 MHz.
The pin of channel selection.
The condition of pin 29 has
3 states.
Connect to 5 V source for “Hi”
selection and connect to GND for
“Low” selection and leave open.
The pin of channel selection.
The condition of pin 30 has
3 states.
Connect to 5 V source for “Hi”
selection and connect to GND for
“Low” selection and leave open.
—7—
CXA3067M
Electrical Characteristics
See Electrical Characteristics Test Circuit (VCC=5.0 V, Ta=+25 °C)
Item Symbol Pin No.
Circuit
Conditions Min. Typ. Max. Unit
No.
RFVCC
Current consumption
IFVCC
Current consumption
DVCC
Current consumption
Input sensitivity 1
Input sensitivity 2
Input level
Local OSC leakage
from RF input 1
Local OSC leakage
from RF input 2
RFamp bias current
RFamp voltage gain 1
RFamp voltage gain 2
RFamp voltage gain 3
RFamp input resistance
RFamp input capacitance
Mixer input resistance
Mixer input capacitance
Mixer voltage gain
RFamp+Mixer noise figure
RFI
CC
IFICC
DICC
Vi1
Vi2
Vil
LOleak1
LOleak2
Irf
Grf1
Grf2
Grf3
rπ (rf)
Cπ (rf)
rπ (mix)
Cπ (mix)
Gmix
NF
rfmix
26, 27
21
11
24
24
27
24
→27
24→27
24→27
24
24
27
27
27→10
24→10
RFV
CC
V1=5 V
IFV
CC
V2=5 V
DV
CC V4=1 V
V3=5 V
Measurement on RFIN pin
SW1 : ON
RF=53.35 M to 169.5 MHz
Measurement on RFIN pin
SW1 : ON
RF=221.95 M to 302 MHz
RFV
CC
V1=5 V
RF=53.35 M to 169.5 MHz
RF=221.95 M to 229.8 MHz
RF=302 MHz
I=4.8 mA, RF=100 MHz
Load Resistance=510 Ω
l=4.8 mA, RF=100 MHz
Load Resistance=510 Ω
RF=100 MHz
RF=100 MHz
RF=108.5 MHz→
IF=10.7 MHz
RF=108.5 MHz→
IF=10.7 MHz ∗
1
fMOD=10 kHz, fDEV=±75 kHz
Jitter is 1 % for f
MOD
50 Ω Termination
RF=53.35 M to 169.5 MHz
f
MOD=10 kHz, fDEV=±75 kHz
Jitter is 1 % for f
MOD
50 Ω Termination
RF=221.95 M to 302 MHz
f
MOD=10 kHz, fDEV=±75 kHz
Jitter is 1 % for f
MOD
50 Ω Termination
RF=53.35 M to 302 MHz
14 24 34 mA
3 6.7 10 mA
3.5 7 10 mA
–32 dBmV
–25 dBmV
+10 dBmV
–10 dBmV
+5 dBmV
3 4.8 7 mA
24 30 34 dB
22 25 28 dB
16 19 22 dB
670 Ω
4.7 pF
1.7 kΩ
5.7 pF
9 13 17 dB
7 dB
Note) 0 dBmV=1 mV, 0 dBµV=1 µV
∗
1
) Noise figure is uncorrected for image.
0 dBmV=60 dBµV
0 dBm=47 dBmV
1
1
1
2
2
2
2
2
1
3
3
3
4
5
—8—
CXA3067M
Item Symbol Pin No.
Circuit
Conditions Min. Typ. Max. Unit
No.
Mixer output resistance
Limiter input resistance
Limiter voltage gain
FSK Data
output voltage “H”
FSK Data
output voltage “L”
FSK Data output rise time
FSK Data output fall time
Oscillation frequency
VT output voltage range
Charge pump current
REFCLOCK input level 1
REFCLOCK input level 2
REFOSC loop gain
FSET1/2/3 “Hi” level
input voltage
FSET1/2/3 “Low” level
input voltage
FSET1/2/3 “Hi” level
input current
FSET1/2/3 “Low” level
input current
RDSW “Low” level
input voltage
RDSW “Low” level
input current
REFSW “Low” level
input voltage
r
L (mix)
rπ (lim)
Glim
OUTH
OUTL
Tr
Tf
OSC
VT
Icp
CLK 1
CLK 2
Gref
FSETVH
FSETVL
FSETIH
FSETIL
RDVL
RDIL
REFVL
10
12
15
19, 20
19, 20
19, 20
19, 20
7, 8
6
5
1
1
1, 2
3, 29, 30
3, 29, 30
3, 29, 30
3, 29, 30
4
4
28
IF=10.7 MHz
IF=10.7 MHz
IF=10.7 MHz
Load Capacitance=2 pF
Load Resistance=10 kΩ,
f
MOD=10 kHz, fDEV=±75 kHz
Load Capacitance=2 pF
Load Resistance=10 kΩ,
f
MOD=10 kHz, fDEV=±75 kHz
Load Capacitance=2 pF
Load Resistance=10 kΩ,
f
MOD=10 kHz, fDEV=±75 kHz
Road Capacitance=2 pF
Road Resistance=10 kΩ,
f
MOD=10 kHz, fDEV=±75 kHz
Source current
→ SW2 : OFF
SW3 : OFF
Sink current → SW2 : ON
SW3 : ON
Sin wave input
Square wave input
Vin2=14 MHz
FSET “Hi”=V5=5 V
FSET “Low”=V5=0 V
RDSW “L”=V6=0 V
222 332 442 Ω
222 332 442 Ω
70 dB
3.8 4.1 V
0.22 0.6 V
12 30 nsec
12 30 nsec
40 315 MHz
0.3 2.5 V
CC V
±25 ±50 ±75 µA
0.3 0.4 3.0 Vp-p
0.3 0.4 3.0 Vp-p
30 dB
3.8 V
CC V
0 0.4 V
120 250 380 µA
–380 –250 –120 µA
0 0.4 V
–122 –83 –43 µA
0 0.4 V
6
2
2
2
2
7
3
1
1
1
1
1
1
1
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