OKI MSM7566TS-K

E2U0016-28-81
¡ Semiconductor
MSM7566/7567
¡ Semiconductor
This version:
Aug. 1998
MSM7566/7567
Previous version: Nov. 1996
Single Rail CODEC
GENERAL DESCRIPTION
The MSM7566 and MSM7567 are single-channel CODEC CMOS ICs for voice signals ranging
from 300 to 3400 Hz. These devices contain filter for A/D and D/A conversion.
Designed especially for a single-power supply and low-power applications, these devices are
optimized for telephone terminals in digital wireless systems.
The MSM7566 and MSM7567 use newly-designed operational amplifiers to maintain small
current deviations caused by power voltage fluctuations.
The devices use the same transmission clocks as those used in the MSM7508B and MSM7509B.
The analog output signal, which is of a differential type, directly drives a handset receiver.
FEATURES
• Single power supply: +2.7 V to +3.8 V
• Low power consumption
Operating mode:
15 mW Typ.
24 mW Max.
VDD = 3.0 V
Power save mode:
6 mW Typ.
18 mW Max.
VDD = 3.0 V
Power down mode:
0.03 mW Typ.
0.2 mW Max.
VDD = 3.0 V
• ITU-T Companding law
MSM7566:
m-law
MSM7567:
A-law
• Transmission characteristics comply with ITU-T G.714
• Built-in PLL eliminates a master clock
• Serial data rate: 64/128/256/512/1024/2048 kHz
96/192/384/768/1536/1544/200 kHz
• Adjustable transmit gain
• Adjustable receive gain
• Built-in reference voltage supply
• Built-in analog loop back test mode
• Differential type analog output. Directly drives a piezoelectric type receiver equivalent to 1.2
kW +55 nF
• Analog output amplifiers can operate in the power save mode
• Pin-for-pin compatible with the MSM7541 and the MSM7542
• Package options:
20-pin plastic skinny DIP (DIP20-P-300-2.54-S1) (Product name : MSM7566RS)
(Product name : MSM7567RS)
24-pin plastic SOP (SOP24-P-430-1.27-K)
(Product name : MSM7566GS-K)
(Product name : MSM7567GS-K)
26-pin plastic TSOP (TSOPII26/20-P-300-1.27-K) (Product name : MSM7566TS-K)
(Product name : MSM7567TS-K)
1/19
¡ Semiconductor
MSM7566/7567
BLOCK DIAGRAM
AIN+
AIN–
+
–
RC
Active
BPF
(8th)
GSX
AD
Conv.
Transmit
Controller
Auto
Zero
PLL
PCMOUT
XSYNC
BCLOCK
TMC
RTIM
VFRO
–
+
SG
SG
Power
Down
PWI
AOUT–
–
+
LPF
(5th)
DA
Conv.
Receive
Controller
RSYNC
PCMIN
PDN
VDD
AG
DG
PWD
Logic
SG
SG
AOUT+
–
+
SG
Voltage
Ref.
Signal
Ground
SGC
SG
2/19
¡ Semiconductor
MSM7566/7567
PIN CONFIGURATION (TOP VIEW)
SG 1
20 SGC
AOUT+ 2
19 AIN+
AOUT– 3
18 AIN–
PWI 4
17 GSX
VFRO 5
16 TMC
VDD 6
DG 7
15 NC
14 AG
SG 1
24 SGC
SG 1
26 SGC
AOUT+ 2
23 AIN+
AOUT+ 2
25 AIN+
AOUT– 3
22 AIN–
AOUT– 3
24 AIN–
NC 4
21 GSX
PWI 4
23 GSX
PWI 5
20 NC
VFRO 5
22 TMC
VFRO 6
NC 7
18 NC
VDD 8
17 NC
DG 9
16 AG
PDN 10
RSYNC 11
PDN 8
RSYNC 9
13 BCLOCK PCMIN 12
12 XSYNC
19 TMC
15 BCLOCK
14 XSYNC
11 PCMOUT
18 NC
DG 10
17 AG
PDN 11
RSYNC 12
13 PCMOUT
PCMIN 13
NC : No connect pin
24-Pin Plastic SOP
PCMIN 10
VDD 9
16 BCLOCK
15 XSYNC
14 PCMOUT
NC : No connect pin
26-Pin Plastic TSOP
NC : No connect pin
20-Pin Plastic Skinny DIP
3/19
¡ Semiconductor
MSM7566/7567
PIN AND FUNCTIONAL DESCRIPTIONS
AIN+, AIN–, GSX
Transmit analog input and transmit level adjustment.
AIN+ is a non-inverting input to the op-amp; AIN– is an inverting input to the op-amp; GSX is
connected to the output of the op-amp and is used to adjust the level, as shown below.
When not using AIN– and AIN+, connect AIN– to GSX and AIN+ to SG. During power saving
and power down modes, the GSX output is at AG voltage.
1) Inverting input type
C1
R2
Analog input
R1
GSX
AIN–
AIN+
SG
–
+
R1 : variable
R2 > 20 kW
C1 > 1/(2 ¥ 3.14 ¥ 30 ¥ R1)
Gain = R2/R1 £ 10
2) Non inverting input type
C2
Analog input
R5
R4
R3
AIN+
AIN–
GSX
C3
SG
+
–
R3 > 20 kW
R4 > 20 kW
R5 > 50 kW
C2 > 1/ (2 ¥ 3.14 ¥ 30 ¥ R5)
C3 : 10 to 20 pF
Gain = 1 + R4 / R3 £ 10
AG
Note:
In the non-inverting input type, connect a 10 pF to 20 pF capacitor between the GSX pin
and the AG pin as illustrated in the figure above. This prevents the generation of
distortion during high power supply voltage and high level signal (+3 to –3dBm0)
input. In the inverting input type, eliminate the capacitor.
AG
Analog signal ground for digital signal circuits.
This ground is separate from the digital signal ground (DG) in this device. The AG pin must be
connected to the DG pin on the printed circuit board and then connected to the analog ground.
4/19
¡ Semiconductor
MSM7566/7567
VFRO
Receive filter output.
The output signal has an amplitude of 2.4 VPP above and below the signal ground voltage (SG)
when the digital signal of +3 dBmO is input to PCMIN and can drive a load of 20 kW or more.
For driving a load of 20 kW or less, connect a resistor of 20 kW or more should be connected
between the pins VFRO and PWI.
When adding the frequency characteristics to the receive signal, refer to the application example.
During power saving mode, the output of VFRO is at the voltage level of SG. During power down
mode, the output is in a high impedance state.
PWI, AOUT+, AOUT–
PWI is connected to the inverting input of the receive driver. The receive driver output is
connected to the AOUT– pin. Therefore, the receive level can be adjusted with the pins VFRO,
PWI, and AOUT–. When the PWI pin is not used, the PWI pin to the AOUT– pin, and leave open
the pins AOUT– and AOUT+. The output of AOUT+ is inverted with respect to the output of
AOUT–. Since the signal from which provides differential drive of an impedance of 1.2 kW +55
nF, these outputs can directly be connected to a receiver of handset using a piezoelectric
earphone.
Refer to the application example.
VI
Receive Filter
VFRO
PWI
AOUT–
SG
–
+
AOUT+
SG
–
+
R6
R6 > 20 kW
ZL ≥ 2.4 kW
R7
Gain = VO/VI = 2 ¥ R7/R6 £ 2
VO
ZL
The other external signals can be output from AOUT+ and AOUT– during power saving, since
these driver amplifiers are in the operational state. During power down mode, the output of
AOUT+ and AOUT– is at the voltage level of SG through high impedance.
The electrical driving capability of the AOUT– pin and AOUT+ pin is ±1.3 V maximum. The
output load resistor has a minimum value of 1.2 kW.
If an output amplitude less than ±1.3 V is allowed, these outputs can drive a load resistance less
than that described above. For more details, refer to SINGLE POWER SUPPLY PCM CODEC
APPLICATION NOTE.
VDD
Power supply for +2.7 V to +3.8 V. (Typically 3.0 V)
PCMIN
PCM signal input.
A serial PCM signal input to this pin is converted to an analog signal in synchronization with the
RSYNC signal and BCLOCK signal.
The data rate of the PCM signal is equal to the frequency of the BCLOCK signal.
The PCM signal is shifted at a falling edge of the BCLOCK signal and latched into the internal
register when shifted by eight bits.
The start of the PCM data (MSD) is identified at the rising edge of RSYNC.
5/19
¡ Semiconductor
MSM7566/7567
BCLOCK
Shift clock signal input for the PCMIN and PCMOUT signal.
When the frequency of the SYNC pulse is at 8 kHz, the BCLOCK frequency, equal to the data rate,
is 64, 96, 128, 192, 256, 384, 512, 768, 1024, 1536, 1544, 2048 or 200 kHz. Setting this signal to logic
"1" or "0" drives both transmit and receive circuits to the power saving state.
RSYNC
Receive synchronizing signal input.
Eight required bits are selected from serial PCM signals on the PCMIN pin by the receive
synchronizing signal.
Signals in the receive section are synchronized by this synchronizing signal. This signal must be
synchronized in phase with the BCLOCK. The frequency should be 8 kHz ±50 ppm to guarantee
the AC characteristics which are mainly the frequency characteristics of the receive section.
However, if the frequency characteristic of an applied system is not specified exactly, this device
can operate in the range of 8 kHz ±2 kHz, but the electrical characteristics in this specification are
not guaranteed. Even if the RSYNC signal is not present, the device is not in power saving state.
XSYNC
Transmit synchronizing signal input.
The PCM output signal from the PCMOUT pin is output in synchronization with this transmit
synchronizing signal. This synchronizing signal triggers the PLL and synchronizes all timing
signals of the transmit section.
This synchronizing signal must be synchronized in phase with BCLOCK.
The frequency should be 8 kHz ±50 ppm to guarantee the AC characteristics which are mainly
the frequency characteristics of the transmit section.
However, if the frequency characteristic of an applied system is not specified exactly, this device
can operate in the range of 8 kHz ±2 kHz, but the electrical characteristics in this specification are
not guaranteed.
Setting this signal to logic "1" or "0" drives both transmit and receive circuits to the power saving
state.
TMC
Control signal input for mode selection.
This pin select the normal operating mode or the analog loop-back mode.
In the analog loop-back mode, the receive filter output is connected to the transmit filter input
and the digital signal input to the PCMIN pin is converted from a digital to an analog signal (D/
A conversion). Next, the analog signal is converted to a digital signal (A/D conversion) through
the receive filter and transmit filter. The result is output to the PCMOUT pin.
When in the analog loop-back mode, the VFRO pin outputs the SG level. (signal ground)
TMC Input
Mode
< 0.16 ¥ VDD
Normal operation
> 0.45 ¥ VDD
Analog loop-back
6/19
¡ Semiconductor
MSM7566/7567
DG
Ground for the digital signal circuits.
This ground is separate from the analog signal ground. The DG pin must be connected to the AG
pin on the printed circuit board to make a common analog ground.
PDN
Power down control signal.
A logic "0" level drives both transmit and receive circuits to a power down state.
PCMOUT
PCM signal output.
The PCM output signal is output from MSD in a sequential order, synchronizing with the rising
edge of the BCLOCK signal.
MSD may be output at the rising edge of the XSYNC signal, based on the timing between
BCLOCK and XSYNC.
This pin is in a high impedance state except during 8-bit PCM output. It is also in a high
impedance state during power saving or power down modes.
A pull-up resistor must be connected to this pin because its output is configured as an open drain.
This device is compatible with the ITU-T recommendation on coding law and output coding
format.
The MSM7567(A-law) outputs the character signal, inverting the even bits.
PCMIN/PCM OUT
Input/Output Level
MSM7566 (m-law)
MSD
MSM7567 (A-law)
MSD
+Full scale
1 0 0 0
0 0 0 0
1 0 1 0
1 0 1 0
+0
1 1 1 1
1 1 1 1
1 1 0 1
0 1 0 1
–0
0 1 1 1
1 1 1 1
0 1 0 1
0 1 0 1
–Full scale
0 0 0 0
0 0 0 0
0 0 1 0
1 0 1 0
SG
Signal ground voltage output.
The output voltage is 1/2 of the power supply voltage.
The output drive current capability is ±200 mA.
This pin provides the SG level for CODEC peripherals.
This output voltage level is undefined during power saving or power down modes.
SGC
Used to generate the signal ground voltage level by connecting a bypass capacitor.
Connect a 0.1 mF capacitor with excellent high frequency characteristics between the AG pin and
the SGC pin.
During power saving and power down modes, the output of this pin is at the voltage level of SG
with an output resistance of about 500 kW.
7/19
¡ Semiconductor
MSM7566/7567
ABSOLUTE MAXIMUM RATINGS
Parameter
Symbol
Condition
Rating
Unit
Power Supply Voltage
VDD
Analog Input Voltage
VAIN
—
0 to 7
V
—
–0.3 to VDD + 0.3
V
Digital Input Voltage
Storage Temperature
VDIN
—
–0.3 to VDD + 0.3
V
TSTG
—
–55 to +150
°C
RECOMMENDED OPERATING CONDITIONS
Parameter
Symbol
Power Supply Voltage
VDD
Operating Temperature
Ta
Condition
Voltage must be fixed
—
Min.
Typ.
Max.
Unit
2.7
3.0
3.8
V
–30
+25
+85
°C
—
—
1.4
VPP
0.45 ¥ VDD
—
VDD
V
0
—
0.16 ¥ VDD
V
Analog Input Voltage
VAIN
Input High Voltage
VIH
Input Low Voltage
VIL
Clock Frequency
FC
BCLOCK
Sync Pulse Frequency
FS
XSYNC, RSYNC
6.0
8.0
10.0
Clock Duty Ratio
DC
BCLOCK
40
50
60
%
Digital Input Rise Time
tIr
XSYNC, RSYNC, BCLOCK,
—
—
50
ns
Connect AIN– and GSX
XSYNC, RSYNC, BCLOCK,
PCMIN, PDN, TMC
64, 128, 256, 512, 1024,
2048, 96, 192, 384, 768,
kHz
1536, 1544, 200
kHz
tIf
PCMIN, PDN, TMC
—
—
50
ns
tXS
BCLOCKÆXSYNC, See Timing Diagram
100
—
—
ns
tSX
XSYNCÆBCLOCK, See Timing Diagram
100
—
—
ns
tRS
BCLOCKÆRSYNC, See Timing Diagram
100
—
—
ns
tSR
RSYNCÆBCLOCK, See Timing Diagram
100
—
—
ns
Sync Pulse Width
tWS
XSYNC, RSYNC
1 BCLK
—
100
ms
PCMIN Set-up Time
tDS
—
100
—
—
ns
tDH
—
100
—
—
ns
RDL
Pull-up resistor
0.5
—
—
kW
Digital Input Fall Time
Transmit Sync Pulse Setting Time
Receive Sync Pulse Setting Time
PCMIN Hold Time
Digital Output Load
CDL
Analog Input Allowable DC Offset
Voff
Allowable Jitter Width
—
—
—
—
100
pF
Transmit gain stage, Gain = 1
–100
—
+100
mV
Transmit gain stage, Gain = 10
–10
—
+10
mV
XSYNC, RSYNC, BCLOCK
—
—
1.0
ms
8/19
¡ Semiconductor
MSM7566/7567
ELECTRICAL CHARACTERISTICS
DC and Digital Interface Characteristics
(VDD = 2.7 V to 3.8 V, Ta = –30°C to +85°C)
Parameter
Symbol
IDD1
IDD4
Power Supply Current
Min.
Typ.
Max.
Unit
VDD = 3.8 V
—
13.0
17.0
mA
VDD = 3.0 V
—
5.0
8.0
mA
—
2.0
6.0
mA
—
0.01
0.05
mA
—
VDD
V
Condition
Operating mode
Power-save mode, PDN = 1,
IDD2
XSYNC or BCLOCK Æ OFF
IDD3
Power-down mode, PDN = 0
0.45 ¥
Input High Voltage
VIH
—
Input Low Voltage
VIL
—
0.0
—
High Level Input Leakage Current
IIH
—
—
—
2.0
mA
Low Level Input Leakage Current
IIL
—
—
—
0.5
mA
Digital Output Low Voltage
VOL
Pull-up resistance > 500 W
VDD
0.16 ¥
VDD
V
0.0
0.2
0.4
V
Digital Output Leakage Current
IO
—
—
—
10
mA
Input Capacitance
CIN
—
—
5
—
pF
9/19
¡ Semiconductor
MSM7566/7567
Transmit Analog Interface Characteristics
(VDD = 2.7 V to 3.8 V, Ta = –30°C to +85°C)
Parameter
Symbol
Condition
Min.
Typ.
Max.
Unit
Input Resistance
RINX
AIN+, AIN–
10
—
—
MW
Output Load Resistance
RLGX
GSX with respect to SG
20
—
—
kW
Output Load Capacitance
CLGX
—
—
50
pF
Output Amplitude
VOGX
–0.7
—
+0.7
V
Offset Voltage
VOSGX
–20
—
+20
mV
Gain = 1
Receive Analog Interface Characteristics
(VDD = 2.7 V to 3.8 V, Ta = –30°C to +85°C)
Parameter
Input Resistance
Symbol
Output Load Capacitance
Min.
Typ.
Max.
Unit
10
—
—
MW
20
—
—
kW
1.2
—
—
kW
VFRO
—
—
100
pF
AOUT+, AOUT–
—
—
50
pF
–1.0
—
+1.0
V
–1.3
—
+1.3
V
–100
—
+100
mV
–100
—
+100
mV
RINPW PWI
RLVF
Output Load Resistance
Condition
RLAO
CLVF
CLAO
VOVF
Output Amplitude
VOAO
VFRO with respect to SG
AOUT+, AOUT– (each) with
respect to SG
VFRO, RL = 20 kW with
respect to SG
AOUT+, AOUT–, RL = 1.2 kW
with respect to SG
VOSVF VFRO with respect to SG
Offset Voltage
VOSAO
AOUT+, AOUT–, Gain = 1 with
respect to SG
10/19
¡ Semiconductor
MSM7566/7567
AC Characteristics
(VDD = 2.7 V to 3.8 V, Ta = –30°C to +85°C, SYNC = 8 kHz)
Parameter
Transmit Frequency Response
Receive Frequency Response
Loss T1
Freq.
(Hz)
60
Loss T2
300
Loss T3
1020
Loss T4
2020
Loss T5
Loss T6
Symbol
Unit
20
26
—
dB
–0.15
+0.1
+0.20
dB
Reference
0
dB
dB
3000
–0.15
+0.08
+0.20
dB
3400
0
0.3
0.80
dB
Loss R1
300
–0.15
–0.07
+0.20
Loss R2
1020
Loss R3
2020
Loss R4
Loss R5
Reference
0
+0.03
+0.20
dB
3000
–0.15
+0.06
+0.20
dB
3400
0.0
0.4
0.80
dB
SD T1
3
35
43
—
SD T2
0
35
42
—
39
—
SD T4
–30
1020
–40
35
*2
*1
*2
29
31.0
27.5
—
–45
SD R1
3
36
43
—
SD R2
0
36
41
—
41
—
–30
1020
–40
SD R5
–45
GT T1
3
GT T3
24
31.5
SD T5
SD R4
36
*2
*1
*2
30
25
–0.3
–10
1020
26
34.5
33.5
30.5
27.5
–0.03
—
dB
—
+0.3
Reference
–0.3
+0.10
+0.3
GT T4
–50
–0.6
+0.15
+0.6
GT T5
–55
–1.2
+0.20
+1.2
GT R1
3
–0.3
0
+0.3
–10
1020
dB
—
–40
GT R3
dB
dB
–0.15
GT R2
Receive Gain Tracking
Max.
+0.20
GT T2
Transmit Gain Tracking
Typ.
0
SD R3
Receive Signal to Distortion Ratio
Min.
–0.15
SD T3
Transmit Signal to Distortion Ratio
Level Condition
(dBm0)
dB
Reference
–40
–0.3
–0.15
+0.3
GT R4
–50
–0.6
–0.25
+0.6
GT R5
–55
–1.2
–0.35
+1.2
dB
*1 Psophometric filter is used
*2 Upper specified for the MSM7566, lower for the MSM7567
11/19
¡ Semiconductor
MSM7566/7567
AC Characteristics (Continued)
(VDD = 2.7 V to 3.8 V, Ta = –30°C to +85°C, SYNC = 8 kHz)
Parameter
Idle Channel Noise
Symbol
Freq.
(Hz)
Nidle T
—
Nidle R
—
Level Condition
(dBm0)
AIN = SG
—
*1
—
AV T
(Deviation of Temperature and Power)
Max.
—
–73
–70
—
–78
–75
0.338
0.35
0.362
0.483
0.50
0.518
AV Tt
*4
1020
0
–0.2
—
+0.2
dB
–0.2
—
+0.2
dB
—
—
0.60
ms
—
0.19
0.75
—
0.11
0.35
—
0.02
0.125
—
0.05
0.125
—
0.07
0.75
—
0.00
0.75
—
0.00
0.35
—
0.00
0.125
—
0.09
0.125
VDD = 2.7 V
to 3.8 V
Ta = –30
AV Rt
Unit
dBmOp
Vrms
Ta = 25°C
AV R
Absolute Level
Typ.
*1 *3
VDD = 3.0 V
Absolute Level (Initial Difference)
Min.
to 85°C *4
A to A
Absolute Delay
Td
1020
0
BCLOCK
= 64 kHz
Transmit Group Delay
Receive Group Delay
Crosstalk Attenuation
*1
*2
*3
*4
*5
tgd T1
500
tgd T2
600
tgd T3
1000
tgd T4
2600
tgd T5
2800
tgd R1
500
tgd R2
600
tgd R3
1000
tgd R4
2600
tgd R5
2800
CR T
CR R
1020
*5
0
*5
0
0
—
0.12
0.75
TRANS Æ RECV
75
79
—
RECV Æ TRANS
75
82
—
ms
ms
dB
Psophometric filter is used
Upper is specified for the MSM7566, lower for the MSM7567
Input "0" code to PCMIN
AVR is defined at VFRO output
Minimum value of the group delay distortion
12/19
¡ Semiconductor
MSM7566/7567
AC Characteristics (Continued)
(VDD = 2.7 V to 3.8 V, Ta = –30°C to +85°C, SYNC = 8 kHz)
Parameter
Discrimination
Out-of-band Spurious
Intermodulation Distortion
Freq.
Level Condition
(Hz)
(dBm0)
4.6 kHz to
0 to
DIS
0
72 kHz
4000 Hz
Symbol
Min.
Typ.
Max.
Unit
30
32
—
dB
—
–37.5
–35
dBmO
—
–52
–35
dBmO
–1.0
—
+1.0
dB
—
30
—
dB
tSD
50
—
200
tXD1
50
—
200
50
—
200
50
—
200
S
IMD
300 to
0
3400
fa = 470
–4
fb = 320
4.6 kHz to
100 kHz
2fa – fb
TMC = 1
D-to-D Mode Gain
—
1020
0
PCMIN to
PCMOUT
Power Supply Noise Rejection Ratio
Digital Output Delay Time
PSR T
0 to
PSR R
50 kHz
tXD2
50 mVPP
*6
CL = 100 pF + 1 LSTTL
tXD3
ns
*6 The measurement under idle channel noise
13/19
,
,
¡ Semiconductor
MSM7566/7567
TIMING DIAGRAM
PCM Data Input/Output Timing
Transmit Timing
BCLOCK
1
2
tXS
XSYNC
4
5
6
7
8
9
10
11
9
10
11
tSX
tWS
tXD1
PCMOUT
3
tSD
MSD
D2
tXD2
D3
D4
D5
D6
tXD3
D8
D7
When tXS £ 1/2 • Fc, the Delay of the MSD bit is defined as tXD1.
When tSX £ 1/2 • Fc, the Delay of the MSD bit is defined as tSD.
Receive Timing
BCLOCK
1
tRS
RSYNC
2
3
4
6
7
8
tSR
tWS
tDS
PCMIN
5
MSD
D2
tDH
D3
D4
D5
D6
D7
D8
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¡ Semiconductor
MSM7566/7567
APPLICATION CIRCUIT
Analog interface
Digital interface
+3.0 V
MSM7566/7567
0.1 mF
AIN+
Analog input
PCMOUT
100 kW
PCM signal output
XSYNC
8 kHz SYNC signal input
AIN–
20 kW
RSYNC
GSX
SG
BCLOCK
BCLOCK input
PCMIN
PCM data input
To AG
10 pF
Analog output
AOUT–
PDN
Power Down control input
PWI
TMC
Analog loop-back
control input
VFRO
20 kW or more
51 kW
SGC
0.1 mF
0V
+3.0 V
AG
10 mF
1 mF
+
DG
VDD
0 to 10 W
FREQUENCY CHARACTERISTICS ADJUSTMENT CIRCUIT
Microphone amp
M
Transmit frequency
characteristic
Adjustment determined with
C1, C2, R1, R2.
R1
AIN–
C1
C2
R2
GSX
AIN+
SG
AOUT+
C4
R4
AOUT–
Receive frequency
characteristic
Adjustment determined with
C3, C4, R3, R4.
PWI
VFRO
R3
C3
R5
C5
Additional input signal
Note:
The additional input signal can be output from AOUT– and AOUT+, since the output
of VFRO is unknown during power saving mode and the output of the AOUT– and
AOUT+ is in the operational state.
15/19
¡ Semiconductor
MSM7566/7567
RECOMMENDATIONS FOR ACTUAL DESIGN
• To assure proper electrical characteristics, use bypass capacitors with excellent high frequency
characteristics for the power supply and keep them as close as possible to the device pins.
• Connect the AG pin and the DG pin each other as close as possible. Connect to the system
ground with low impedance.
• Mount the device directly on the board when mounted on PCBs. Do not use IC sockets. If an
IC socket is unavoidable, use the short lead type socket.
• When mounted on a frame, use electro-magnetic shielding, if any electro-magnetic wave
source such as power supply transformers surround the device.
• Keep the voltage on the VDD pin not lower than –0.3 V even instantaneously to avoid latchup phenomenon when turning the power on.
• Use a low noise (particularly, low level type of high frequency spike noise or pulse noise)
power supply to avoid erroneous operation and the degradation of the characteristics of these
devices.
16/19
¡ Semiconductor
MSM7566/7567
PACKAGE DIMENSIONS
(Unit : mm)
DIP20-P-300-2.54-S1
Package material
Lead frame material
Pin treatment
Solder plate thickness
Package weight (g)
Epoxy resin
42 alloy
Solder plating
5 mm or more
1.49 TYP.
17/19
¡ Semiconductor
MSM7566/7567
(Unit : mm)
SOP24-P-430-1.27-K
Mirror finish
Package material
Lead frame material
Pin treatment
Solder plate thickness
Package weight (g)
Epoxy resin
42 alloy
Solder plating
5 mm or more
0.58 TYP.
Notes for Mounting the Surface Mount Type Package
The SOP, QFP, TSOP, SOJ, QFJ (PLCC), SHP and BGA are surface mount type packages, which
are very susceptible to heat in reflow mounting and humidity absorbed in storage.
Therefore, before you perform reflow mounting, contact Oki’s responsible sales person for the
product name, package name, pin number, package code and desired mounting conditions
(reflow method, temperature and times).
18/19
¡ Semiconductor
MSM7566/7567
(Unit : mm)
TSOPII26/20-P-300-1.27-K
Mirror finish
Package material
Lead frame material
Pin treatment
Solder plate thickness
Package weight (g)
Epoxy resin
42 alloy
Solder plating
5 mm or more
0.38 TYP.
Notes for Mounting the Surface Mount Type Package
The SOP, QFP, TSOP, SOJ, QFJ (PLCC), SHP and BGA are surface mount type packages, which
are very susceptible to heat in reflow mounting and humidity absorbed in storage.
Therefore, before you perform reflow mounting, contact Oki’s responsible sales person for the
product name, package name, pin number, package code and desired mounting conditions
(reflow method, temperature and times).
19/19