AK1221

[AK1221]
AK1221
3500MHz High Lineartity Mixer
1. Overview
The AK1221 is high linearity mixer. RF and Lo frequency range coverage is from 700 to 3500MHz and IF coverage
is from 20 to 200MHz. The RF input provides single-ended 50Ω interface. Lo ports are 50Ω matched and
complementary input should be decoupled to the ground. IF output ports are differential open drain outputs. The
linearity and power consumption performances can be optimized by the resistance connected to the BIAS Pin.
2. Features

Operating Frequency:

Linearity vs. Power selectable architecture
700MHz to 3500MHz
Power Consumption: 45mA, IIP3: +25dBm, Gain: -0.5dB, NF: 14dB

Lo input level:
0dBm ±5dB

Operating Supply Voltage:
4.75 to 5.25 V

Package:
16pin UQFN (0.5mm pitch, 3mm  3mm  0.60mm)

Operating Temperature Range:
-40 to 85C
3. Applications

Cellular BTS / Repeater

Two-way Radios (PMR/LMR)
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[AK1221]
4. Table contents
1.
Overview ___________________________________________________________________________ 1
2.
Features ___________________________________________________________________________ 1
3.
Applications ________________________________________________________________________ 1
4.
Table contents _______________________________________________________________________ 2
5.
Block Diagram ______________________________________________________________________ 3
6.
System Diagram _____________________________________________________________________ 4
7.
Pin Functional Description _____________________________________________________________ 5
8.
Absolute Maximum Ratings ____________________________________________________________ 7
9.
Recommended Operating Range ________________________________________________________ 7
10.
Electrical Characteristics_______________________________________________________________ 8
11.
Typical Performance __________________________________________________________________ 9
12.
Typical Evaluation Board Schematic _____________________________________________________ 16
13.
LSI Interface Schematic ______________________________________________________________ 18
14.
Application Information _______________________________________________________________ 19
15.
Outer Dimensions ___________________________________________________________________ 24
16.
Marking ___________________________________________________________________________ 25
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[AK1221]
BIAS
5. Block Diagram
LOINP
Iref
Lo Buffer
LOINN
IFOUTP
RFIN
Mixer
Figure 1.
MS1400-E-03
VSS
VDD
IFOUTN
Block Diagram
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[AK1221]
6. System Diagram
AK1221
Current Adjustment
Resistor
22kΩ to 56kΩ
VSS
LO Input
VDD
(Powerfeeding for
Open-drain Output)
BIAS
LOINP
LO Buffer
Iref
10nF
100pF
LOINN
VSS
IFOUTP
Mixer
RF Input
Output Load
Resistor
680Ω
VSS
BALUN
IF Output
RFIN
IFOUTN
RF Input
Impedance
Matching
VDD
VSS
IF Input
Impedance
Matching
VSS
100pF
VSS
10nF
VDD
VSS
Figure 2.
MS1400-E-03
System Diagram
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[AK1221]
7. Pin Functional Description
Table 1
No.
Name
I/O
1
RFIN
AI
RF Input
2
VSS
G
Ground pin
3
VSS
G
Ground pin
4
LOINN
AI
Lo Input Negative
5
LOINP
AI
Lo Input Positive
6
VDD
P
Power Supply
7
VDD
P
Power Supply
8
VDD
P
Power Supply
9
VDD
P
Power Supply
10
BIAS
AIO
Pin Function
Pin Functions
Resistance pin for current
Remarks
Connecting an inductor between this pin and ground.
Connecting a resistor between this pin and ground.
adjustment
11
IFOUTN
AO
IF Output Negative
This pin is open drain output.
It needs power feeding via an inductor.
12
IFOUTP
AO
IF Output Positive
This pin is open drain output.
It needs power feeding via an inductor.
13
VSS
G
Ground pin
14
VSS
G
Ground pin
15
VSS
G
Ground pin
16
VSS
G
Ground pin
Note)
The exposed pad at the center of the backside should be connected to ground.
AI : Analog input pin
P : Power supply pin
MS1400-E-03
AO : Analog output pin
G : Ground pin
AIO : Analog I/O pin
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2014/10
VSS
15
VSS
16
IFOUTN
BIAS
VDD
9
TOP
VIEW
1
2
3
4
LOINN
14
10
VSS
VSS
11
VSS
13
12
RFIN
VSS
IFOUTP
[AK1221]
8
VDD
7
VDD
6
VDD
5
LOINP
Figure 3. Package Pin Layout
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8. Absolute Maximum Ratings
Table 2
Parameter
Symbol
Absolute Maximum Ratings
Min.
Max.
Unit
-0.3
5.5
V
Supply Voltage
VDD
RF Input Power
RFPOW
12
dBm
LO Input Power
LOPOW
12
dBm
Storage Temperature
Tstg
125
C
-55
Remarks
Exceeding these maximum ratings may result in damage to the AK1221. Normal operation is not guaranteed at
these extremes.
9. Recommended Operating Range
Table 3
Parameter
Symbol
Min.
Operating
Temperature
Ta
-40
Supply Voltage
VDD
4.75
Recommended Operating Range
Typ.
5
Max.
Unit
85
C
5.25
V
Remarks
The specifications are applicable within the recommended operating range (supply voltage/operating temperature).
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10. Electrical Characteristics
1.Analog Circuit Characteristics
Unless otherwise noted IF output=150MHz, Lo Input Level=-5dBm to +5dBm,
Output Load Resistor (RLoad)=680Ω, VDD=4.75 to 5.25V, Ta=-40C to 85C
Parameter
Min.
Typ.
Max.
Unit
RF Input Frequency
700
3500
MHz
Lo Input Frequency
700
3500
MHz
IF output Frequency
20
200
MHz
Lo Input Power
-5
+5
dBm
Current Adjustment Resistor(BIAS)
22
56
kΩ
IDD
0
Remarks
BIAS=22kΩ
64
87
mA
The total current of VDD
BIAS=33kΩ
45
64
mA
pin,
BIAS=56kΩ
30
44
mA
IFOUTN pin.
IFOUTP
pin
and
RFIN=2500MHz, Current Adjustment Resistor =33kΩ
Conversion Gain
-2.5
SSB Noise Figure
-0.5
1.5
dB
14
16.5
dB
IP1dB
7
10
dBm
IIP3
21
25
dBm
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Design guarantee value
Design guarantee value
2014/10
[AK1221]
11. Typical Performance
Unless otherwise noted, RF input =2500MHz, Lo input =2350MHz, IF output =150MHz,
Output Load Resistor (RLoad)=680
Current Adjustment Resistor vs. IIP, NF, P1dB, Gain, IDD
30
20
28
19
26
18
24
17
22
16
NF [dB]
IIP3 [dBm]
1.
20
18
15
14
16
13
14
12
12
11
10
10
22
27
32
37
42
47
52
22
27
32
R_Bias[kohm]
37
42
47
52
47
52
R_Bias[kohm]
14
5
4
12
2
8
1
Gain [dB]
IP1dB [dBm]
3
10
6
0
-1
-2
4
-3
2
-4
0
-5
22
27
32
37
42
47
52
22
R_Bias[kohm]
27
32
37
42
R_Bias[kohm]
100
90
80
IDD [mA]
70
60
50
40
30
20
10
22
27
32
37
42
47
52
R_Bias[kohm]
Figure 4. Current Adjustment Resistor vs. IIP3, NF, P1dB, Gain, IDD
Note ) A resistor with 5% tolerance are used.
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Over temperature vs. IIP3, NF, P1dB, Gain, IDD
30
20
28
19
26
18
24
17
22
16
NF [dB]
IIP3 [dBm]
2.
20
18
15
14
16
13
14
12
12
11
10
10
-40
10
60
-40
10
Temp[℃]
60
Temp[℃]
14
5
12
4
3
2
8
Gain [dB]
IP1dB [dBm]
10
6
4
1
0
-1
-2
-3
2
-4
0
-40
10
-5
60
-40
Temp[℃]
10
60
Temp[℃]
80
70
IDD [mA]
60
50
40
30
20
Resistance for current adjustment
10
22kohm
0
-40
10
60
33kohm
Temp[℃]
56kohm
Figure 5. Over temperature vs. IIP3, NF, IP1dB, Gain, IDD
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Supply voltage vs. IIP3, NF, P1dB, Gain, IDD
30
20
28
19
26
18
24
17
22
16
NF [dB]
IIP3 [dBm]
3.
20
18
15
14
16
13
14
12
12
11
10
10
4.75
4.85
4.95
5.05
5.15
5.25
4.75
4.85
VDD[V]
5.05
5.15
5.25
5.05
5.15
5.25
VDD[V]
5
14
4
12
3
10
2
8
1
Gain [dB]
IP1dB [dBm]
4.95
6
0
-1
-2
4
-3
2
-4
-5
0
4.75
4.85
4.95
5.05
5.15
4.75
5.25
4.85
4.95
VDD[V]
VDD[V]
70
60
IDD [mA]
50
40
30
20
Resistance for current adjustment
10
22kohm
0
4.75
4.85
4.95
5.05
5.15
33kohm
5.25
VDD[V]
56kohm
Figure 6. Supply voltage vs. IIP3, NF, IP1dB, Gain, IDD
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RF input frequency vs. IIP3, NF, Gain
30
20
28
19
26
18
24
17
22
16
NF [dB]
IIP3 [dBm]
4.
20
18
15
14
16
13
14
12
12
11
10
10
700
1200
1700
2200
2700
3200
700
1200
1700
2200
2700
3200
RF [MHz]
15
5
14
4
13
3
12
2
11
1
Gain [dB]
IP1dB [dBm]
RF [MHz]
10
9
0
-1
8
-2
7
-3
6
-4
-5
5
700
1200
1700
2200
2700
700
3200
1100
1500
1900
2300
2700
3100
3500
RF [MHz]
RF [MHz]
Resistance for current adjustment
22kohm
33kohm
56kohm
Figure 7. RF input frequency vs. IIP3, NF, Gain
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5.
IF input frequency vs. IIP3, NF, Gain
30
20
28
19
26
18
17
22
NF [dB]
IIP3 [dBm]
24
20
18
16
16
15
14
14
13
12
10
12
20
40
60
80
100
120
140
160
180
200
20
40
60
80
100
120
140
160
180
200
140
160
180
200
IF [MHz]
15
5
14
4
13
3
12
2
11
1
Gain [dB]
IP1dB [dBm]
IF [MHz]
10
9
0
-1
8
-2
7
-3
6
-4
-5
5
20
40
60
80
100
120
140
160
180
20
200
40
60
80
100
120
IF [MHz]
IF [MHz]
Resistance for current adjustment
22kohm
33kohm
56kohm
Figure 8. IF input frequency vs. IIP3, NF, Gain
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[AK1221]
Lo input power vs. IIP3, NF, Gain
30
20
28
19
26
18
24
17
22
16
NF [dB]
IIP3 [dBm]
6.
20
18
15
14
16
13
14
12
12
11
10
10
-10
-5
0
5
10
-10
-5
LO input[dBm]
5
10
5
10
5
14
4
12
3
10
2
8
1
Gain [dB]
IP1dB [dBm]
0
LO input[dBm]
6
0
-1
-2
4
-3
2
-4
-5
0
-10
-5
0
5
-10
10
-5
0
LO input[dBm]
LO input[dBm]
Resistance for current adjustment
22kohm
33kohm
56kohm
Figure 9. Lo input power vs. IIP3, NF, Gain
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[AK1221]
Output Load Resistor(RLoad) vs. IIP3, NF, Gain
30
28
26
24
22
20
18
16
14
12
10
18
17
16
NF [dB]
IIP3 [dBm]
7.
15
14
13
12
430
480
530
580
630
680
730
780
430
480
530
580
RL [ohm]
17
Gain [dB]
IP1dB [dBm]
15
13
11
9
7
5
480
530
580
630
680
730
780
680
730
780
RL [ohm]
19
430
630
680
730
5
4
3
2
1
0
-1
-2
-3
-4
-5
430
780
480
530
580
630
RL [ohm]
RL [ohm]
Resistance for current adjustment
22kohm
33kohm
56kohm
Figure 10. Output Load Resistor(RLoad) vs. IIP3, NF, Gain
8.
Leakage
RFIN=2500MHz,-20dBm,LO input=2350MHz,0dBm,RLoad=680,Ta=25℃ VDD=5V
Parameter
RF – LO Leakage
RF – IF Leakage
LO – RF Leakage
LO – IF Leakage
MS1400-E-03
BIAS
Typ.
Unit
22k
-36
dBc
56k
-36
dBc
22k
-61
dBc
56k
-57
dBc
22k
-44
dBc
56k
-44
dBc
22k
-58
dBc
56k
-66
dBc
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[AK1221]
12. Typical Evaluation Board Schematic
1. Typical Evaluation Board Schematic
Current Adjustment
Resistor
22kΩ to 56kΩ
AK1221
VSS
LO Input
VDD
(Powerfeeding for
Open-drain Output)
BIAS
LOINP
LO Buffer
Iref
10nF
100pF
LOINN
VSS
IFOUTP
Mixer
RF Input
Output Load
Resistor
680Ω
VSS
BALUN
IF Output
RFIN
IFOUTN
RF Input
Impedance
Matching
VDD
VSS
IF Input
Impedance
Matching
VSS
100pF
VSS
10nF
VDD
VSS
Figure 11. Typical Evaluation Board Schematic
Note 1)
The open drain output needs power feeding via a inductor. (IFOUTP pin and IFOUTN pin)
Note 2)
It is necessary to adjust impedance matching as to its setting frequency. (RF input and IF output)
2. Example of impedance matching
2 -1 RFIN
RF Input
C1
C2
L1
L2
RFIN
AK1221
Frequency[MHz]
C1[pF]
C2[pF]
L1[nH]
L2[nH]
Impedance[ohm]
700
none
20
none
39
42.9 - j5.4
2500
39
2.2
1.8
10
61.2 - j12.8
3500
39
1.0
1.0
10
40.7 - j5.1
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2 - 2 IFOUT
VDD (Powefeeding for Open-drain Output)
10nF
100pF
Output Load Resistor VSS
RLoad
L1
AK1221
BALUN
IF Output
IFOUTP
R1
C2
C1
IFOUTN
L2
VSS
Frequency [MHz]
20
150
200
R1 [ohm]
C1 [pF]
680
C2 [pF]
15
680
1
680
L1 [nH]
none
None
none
none
1200
*1
180
*2
*2
150
L2 [nH]
1200
180
150
*1
*2
*2
Impedance[ohm]
56.6 – j4.5
52.6 – j1.6
47.0 – j11.9
*1)Murata LQW21A series
*2)Murata LQW18A series
2 – 3 LOINP/LOINN
LO Input
LOINP
39pF
LOINN
AK1221
39pF
VSS
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13. LSI Interface Schematic
No.
Name
I/O
Function
1
RFIN
I
RF Input pin
4
LOINN
I
Lo Input pins
5
LOINP
10
BIAS
I/O
Analog I/O pin
300Ω
11
IFOUTN
12
IFOUTP
O
IF Output pins
IFOUTP
IFOUTN
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14. Application Information
•Impedance matching network with LC
Figure 12. Impedance matching network with LC
Impedance matching network with LC is shown in Figure 12. AK1221 has open drain outputs, so RL1 + RL2 is
output load resistance. C11 and L11 compose lowpass filter. C12 and L12 are for highpass filter. C13 is DC
blocking capacitor and L13 is RF choke. IFOUTP and IFOUTN pins need power feeding via L11, L12 and L13.
The differential voltage from IFOUTP/N can be converted to a single-ended by L11, L12, C11 and C12 properly.
The differential impedance (RL1 + RL2) is converted to single-ended output terminating impedance Ro.
L11, C11, L12 and C12 are calculated as below. fout is IF output frequency.
C11  C12 
L11  L12 
1
2π * f OUT * RL1  RL2 * RO
RL1  RL2 * RO
2π * f OUT
For example, in the case of IF Output = 50MHz, Output Load Resistor (Rload) = 660 in 50 interface, L11,
C11, L12 and C12 are calculated as below.
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C11  C12 
1
 5.84pF
2π * 150 *10^6* 660 * 50
L11  L12 
660 * 50
 193nH
2π * 150 *10^6
L13 and C13 should be large enough not to affect the impedance at IF output frequency. In some cases the
impedance matching can be optimized by L13 and C13.
For example, in the case of IF Output = 150MHz, Output Load Resistor (Rload) = 660 in 50 interface, it is
recommended to choose 2200nH and 1000pF as L13 and C13. If any correction is needed, it can be adjusted
by reducing the value of L13 and C13.
In some cases L14 can be selected to resonate with IF output capacitance. The typical differential output
impedances for several frequencies are below. In the case of IF Output = 150MHz, it is recommended to choose
1000nH as L14.
Differential Output Impedance
Matching Element
IF Output Frequency [MHz]
R[ohm]
jX[ohm]
L14 [nH]
50
712
-j553
open
70
412
-j434
open
90
280
-j360
open
110
178
-j294
1740
120
148
-j274
1482
150
100
-j222
954
170
78
-j197
746
200
56
-j167
536
These calculated values are approximation. In some cases, some correction is needed due to the effect of
parasitic capacitance of external parts or/and PCBs. The impedance matching network components should be
decided through enough evaluation on AK1221.
Typical Performance using impedance matching network with LC is below. RF Input = 2500MHz, IF Output =
150MHz, LO Input = 2350MHz, Output Load Resistor (Rload) = 660, Vdd = 5V, Ta = 25C, LO Input Level =
0dBm, current adjustment resistor =33kΩ.
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Ref.
Value
Size
Part Number
RL1, RL2
330
1005
KOA RK73B1ETTP331
L11, L12
200nH
1608
Murata LQW18ANR20G00
C11, C12
6pF
1005
Murata GJM1552C1H6R0DB01
L13
2200nH
2012
Murata LQW21HN2R2J00
C13
1000pF
1005
Murata GRM1552C1H102JA01
L14
1000nH
2012
Murata LQW21HN1R0J00
Parameter
Min.
Typ.
Max.
Unit
Conversion Gain
-1.1
dB
SSB Noise Figure (NF)
13.8
dB
IP1dB
11.6
dBm
IIP3
24.8
dBm
The phase and amplitude balance is achieved at IF Output frequency by using impedance matching network with
LC. The port-to-port leakage is improved with the phase and amplitude balance is achieved at RF, LO, and IF
frequency with wide band balun.
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[AK1221]
・Evaluation Board
Figure 13. AK1221 Evaluation Board (Balun)
Figure 14. AK1221 Evaluation Board Schematic (Balun)
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Figure 15. AK1221 Evaluation Board (matching network with LC)
Figure 16. AK1221 Evaluation Board Schematic (matching network with LC)
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15. Outer Dimensions
1 pin marking
(Note 1)
1
4
16
5
8
13
12
9
Figure 17. Outer Dimensions
Note 1. 1 pin marking is only a reference for the 1 pin location on the top of package.
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16. Marking
(a) Style
:
UQFN
(b) Number of pins
:
16
(c) 1 pin marking:
:
○
(d) Product number
:
1221
(e) Date code
:
YWWL (4 digits)
Y:
Lower 1 digit of calendar year (Year 2012 → 2, 2013 → 3 ...)
WW :
Week
L:
Lot identification, given to each product lot which is made in a week
 LOT ID is given in alphabetical order (A, B, C…).
1 2 2 1 (d)
YWWL (e)
(c)
Figure 18. Marking
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IMPORTANT NOTICE
0. Asahi Kasei Microdevices Corporation (“AKM”) reserves the right to make changes to
the information contained in this document without notice. When you consider any use
or application of AKM product stipulated in this document (“Product”), please make
inquiries the sales office of AKM or authorized distributors as to current status of the
Products.
1. All information included in this document are provided only to illustrate the operation
and application examples of AKM Products. AKM neither makes warranties or
representations with respect to the accuracy or completeness of the information
contained in this document nor grants any license to any intellectual property rights
or any other rights of AKM or any third party with respect to the information in this
document. You are fully responsible for use of such information contained in this
document in your product design or applications. AKM ASSUMES NO LIABILITY
FOR ANY LOSSES INCURRED BY YOU OR THIRD PARTIES ARISING FROM THE
USE OF SUCH INFORMATION IN YOUR PRODUCT DESIGN OR APPLICATIONS.
2. The Product is neither intended nor warranted for use in equipment or systems that
require extraordinarily high levels of quality and/or reliability and/or a malfunction or
failure of which may cause loss of human life, bodily injury, serious property damage
or serious public impact, including but not limited to, equipment used in nuclear
facilities, equipment used in the aerospace industry, medical equipment, equipment
used for automobiles, trains, ships and other transportation, traffic signaling
equipment, equipment used to control combustions or explosions, safety devices,
elevators and escalators, devices related to electric power, and equipment used in
finance-related fields. Do not use Product for the above use unless specifically agreed
by AKM in writing.
3. Though AKM works continually to improve the Product’s quality and reliability, you
are responsible for complying with safety standards and for providing adequate
designs and safeguards for your hardware, software and systems which minimize risk
and avoid situations in which a malfunction or failure of the Product could cause loss
of human life, bodily injury or damage to property, including data loss or corruption.
4. Do not use or otherwise make available the Product or related technology or any
information contained in this document for any military purposes, including without
limitation, for the design, development, use, stockpiling or manufacturing of nuclear,
chemical, or biological weapons or missile technology products (mass destruction
weapons). When exporting the Products or related technology or any information
contained in this document, you should comply with the applicable export control laws
and regulations and follow the procedures required by such laws and regulations. The
Products and related technology may not be used for or incorporated into any products
or systems whose manufacture, use, or sale is prohibited under any applicable
domestic or foreign laws or regulations.
5. Please contact AKM sales representative for details as to environmental matters such
as the RoHS compatibility of the Product. Please use the Product in compliance with
all applicable laws and regulations that regulate the inclusion or use of controlled
substances, including without limitation, the EU RoHS Directive. AKM assumes no
liability for damages or losses occurring as a result of noncompliance with applicable
laws and regulations.
6. Resale of the Product with provisions different from the statement and/or technical
features set forth in this document shall immediately void any warranty granted by
AKM for the Product and shall not create or extend in any manner whatsoever, any
liability of AKM.
7. This document may not be reproduced or duplicated, in any form, in whole or in part,
without prior written consent of AKM.
MS1400-E-03
26
2014/10
Related Parts
Part#
Discription
Comments
AK1220
100MHz~900MHz High Linearity Down Conversion Mixer
IIP3:+22dBm
AK1222
100MHz~900MHz Low Power Down Conversion Mixer
IDD:2.9mA
AK1224
100MHz~900MHz Low Noise, High Liniarity Down Conversion Mixer
NF:8.5dB, IIP3:+18dBm
AK1228
10MHz~2GHz Up/Down Conversion Mixer
3V Supply, NF:8.5dB
AK1221
0.7GHz~3.5GHz
IIP3:+25dBm
AK1223
3GHz~8.5GHz High Linearity Down Conversion Mixer
Mixer
High Linearity Down Conversion Mixer
IIP3:+13dB, NF:15dB
PLL Synthesizer
AK1541
20MHz~600MHz Low Power Fractional-N Synthesizer
IDD:4.6mA
AK1542A
20MHz~600MHz Low Power Integer-N Synthesizer
IDD:2.2mA
AK1543
400MHz~1.3GHz Low Power Fractional-N Synthesizer
IDD:5.1mA
AK1544
400MHz~1.3GHz Low Power Integer-N Synthesizer
IDD:2.8mA
AK1590
60MHz~1GHz Fractional-N Synthesizer
IDD:2.5mA
AK1545
0.5GHz~3.5GHz Integer-N Synthesizer
16-TSSOP
AK1546
0.5GHz~3GHz Low Phase Noise Integer-N Synthesizer
Normalized C/N:-226dBc/Hz
AK1547
0.5GHz~4GHz Integer-N Synthesizer
5V Supply
AK1548
1GHz~8GHz Low Phase Noise Integer-N Synthesizer
Normalized C/N:-226dBc/Hz
100~300MHz Analog Signal Control IF VGA w/ RSSI
Dynamic Range:30dB
IFVGA
AK1291
integrated VCO
AK1572
690MHz~4GHz Down Conversion Mixer with Frac.-N PLL and VCO
IIP3:24dBm, [email protected]
AK1575
690MHz~4GHz Up Conversion Mixer with Frac.-N PLL and VCO
IIP3:24dBm, [email protected]
IF Reciever (2nd Mixer + IF BPF + FM Detector)
AK2364
Built-in programmable AGC+BPF, FM detector IC
IFBPF:10kHz ~ 4.5kHz
AK2365A
Built-in programmable AGC+BPF, IFIC
IFBPF:7.5kHz ~ 2kHz
Analog BB for PMR/LMR
AK2345C
AK2360/
AK2360A
CTCSS Filter, Encoder, Decoder
24-VSOP
Inverted frequency(3.376kHz/3.020kHz) scrambler
8-SON
AK2363
MSK Modem/DTMF Receiver
24-QFN
AK2346B
0.3-2.55/3.0kHz Analog audio filter,
Emphasis, Compandor, scrambler, MSK Modem
24-VSOP
0.3-2.55/3.0kHz Analog audio filter
Emphasis, Compandor, scrambler, CTCSS filter
24-VSOP
AK2346A
AK2347B
AK2347A
24-QFN
24-QFN
Function IC
AK2330
8-bit 8ch Electronic Volume
VREF can be selected for each
channel
AK2331
8-bit 4ch Electronic Volume
VREF can be selected for each
channel
Asahi Kasei Microdevices Corporation (“AKM”) reserves the right to make changes to the information contained in this document
without notice. When you consider any use or application of AKM product stipulated in this document, please make inquiries the
sales office of AKM or authorized distributors as to current status of the Products.
2014/10