YOUDA YD2149

YD2149
YOUDA INTEGRATED CIRCUIT
AM/FM 1 CHIP TUNER IC—YD2149
FUNCTIONS
YD2149 are AM/FM 1 chip tuner ICs, which are designed for portable Radios and 3V Head phone Radios. This
is suitable for Digital Tuning System Applications. FM Local Oscillation Voltage is set up low relativity, for NEW
FCC.
● For NEW FCC.
● Suitable for combination with Digital Tuning System which is included IF Counter.
● One terminal type AM/FM IF count output for IF counter of Digital Tuning system.
FM: 1.3375MHz(1/8 dividing)
AM: 450kHz
●
●
●
●
Built-in Mute Circuit for IF count output.
For adopting ceramic Discriminator,it is not necessary to adjust the FM Quad Detector Circuit.
Built-in FM MPX VCO circuit.
Built-in one terminal type AM/FM Local Oscillator Buffer Output for Digital Tuning System Applications.
Built-in 1/16 Pre-scaler for FM Local OSC Buffer.
● Built-in AM Low cut circuit.
● Low supply voltage range(Vcc=3V,Ta=25℃)
Iccq(FM)=13mA(Typ)
Iccq(FM)=8.5mA(Typ)
● Operating Supply voltage range :Vcc=1.8~7V(Ta=25℃)
。
WuXi YouDa Electronics Co., Ltd
Tel:
Add: No.5 Xijin Road, National Hi-Tech Industrial Development Zone, Wuxi Jiangsu China
86-510-85205117
86-510-85205106
Fax: 86-510-85205110
Website: www.e-youda.com
SHENZHEN OFFICE Tel: 86-755-83740369
Fax: 86-755-83741418
Ver 5.0
1 of 7
2006-7-10
YD2149
YOUDA INTEGRATED CIRCUIT
BLOCK DIAGRAM
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YD2149
YOUDA INTEGRATED CIRCUIT
EXPLANATION OF TERMINALS
MAXIMUM
Pin
No.
CHARCTERISTIC
Pin
No.
CHARCTERISTIC
1
RF GND
13
LPF2
2
FM-RF IN
14
LPF1
3
AM LOW CUT
15
MPX IN
4
MIX OUT
16
DET OUT
5
VCC
17
IF REQ
6
AM IF IN
18
ST LED
7
FM IF IN
19
OSC OUT
8
GND
20
AM OSC
9
AGC
(AM AGC)
21
FM OSC
10
QUAD
22
AM RF IN
11
R-OUT
23
RF VCC
12
L-OUT
24
FM RF OUT
RATINGS(Tamb=25℃)
CHARACTERSTIC
SYMOL
RATING
UNIT
Supply
VCC
8
V
LED Current
ILED
10
mA
LED Votage
VLED
8
V
Power
Dissipation
YD2111N
YD2111F
1200
PD(Note)
500
mW
Operating Temperature
Topr
-25~+75
℃
Storage Temperature
Tstg
-55~+150
℃
Note:Derated above 25℃ in the proportion of 9.6 mW/℃(2149N)、4 mW/℃(2149F).
ELECTICAL CHARACTERISTICS
(Unless otherwise specified,Tamb=25℃,VCC=3V,F/E: f=98MHz,fm=1kHz
FM IF:f=10.7MHz,f=±22.5kHz ,m=1kHz
AM :f=1MHz,MOD=30%,fm=1kHz
MPX :fm=1kHz)
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YD2149
YOUDA INTEGRATED CIRCUIT
CHARACTERSTIC
TYP.
MAX.
Vin=0, FM mode
13
16.5
Icc(AM)
Vin=0, AM mode
8.5
11.0
Input Limiting
Voltage
Vin(lim)
-3dB limiting
10
dBμV
Local OSC Buffer
Output Voltage 1
VOSC FM1
fOSC=108.7 MHz
23
35
mVrms
Local OSC Buffer
Output Voltage 2
VOSC FM2
fOSC=6.79375 MHz
75
110
mVrms
Input Limiting
Voltage
Vin(lim)IF
-3 dB limiting
37
42
47
dB
μV
Recovered Output
Voltage
VOD
Vin=80dBμV
200
250
300
mVrms
Signal To Noise
Ratio
S/N
Vin=80dBμV
75
dB
Total Harmonic
Distortion
THD
Vin=80dBμV
0.3
%
IF Count Output
Frequency
fIF(FM)
Vin=80dBμV;
SW7:ON
1.3373
1.3375
1.3377
MHz
IF Count Output
Voltage
VIF(FM)
Vin=80dBμV;
SW7:ON
250
290
330
mVp-p
IF Count Output
Sensitivity
IF
sens(FM)
SW7:ON
42
47
52
dBμV
Gain
GV
Vin=27dBμV
20
38
70
mVrms
Recovered Output
Voltage
VOD
Vin=60dBμV
60
85
108
mVrms
Signal To Noise
Ratio
S/N
Vin=60dBμV
41
dB
Total Harmonic
Distortion
THD
Vin=60dBμV
0.7
%
Local OSC Buffer
Output Voltage
VOSCAM
fOSC=1.45 MHz
55
75
mVrms
IF Count Output
Voltage
VIF(AM)
Vin=60dBμV;
SW7:ON
250
290
330
mVp-p
IF Count Output
Sensitivity
IF
sens(AM)
SW7:ON
33
38
43
dBμV
Supply Current
F/E
FM
IF
AM
SYMOL
TEST CONDITION
Icc(FM)
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MIN.
UNIT
mA
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YD2149
YOUDA INTEGRATED CIRCUIT
PIN17 Output
Resistance
R17
0.75
AM mode
15.5
kΩ
Input Resistance
RIN
55
kΩ
Output Resistance
ROUT
5
kΩ
Max. Composite
Signal Input
Voltage
Vin MAX
(STEREO)
700
mVrms
Separation
MPX
FM mode
Sep.
L+R=90%, P=10%,
fm=1kHZ, THD=3%
L+R=180
Mvrms,
P=20mVrms
fm=100HZ
fm=1kHz
45
35
fm=10kHz
dB
45
45
THD
(MONAUR
AL)
Vin=200mV
TGD
(STEREO)
L+R=180mV
P=20mV
Voltage
GV
Vin=200mV
-2.7
-1.2
0.2
dB
Channel Balance
C.B.
Vin=200mV
-1.5
0
1.5
dB
10
14
mVrms
TH
D
Monaural
Stereo
Stereo
LED
Sensitiviy
ON
OF
F
0.3
%
0.3
VL(ON)
Pilot Input(19kHz)
VL(OFF)
5
8
mVrms
Stereo LED
Hysteresis
VH
LED ON →OFF
2
mVrms
Capture Range
C.R.
P=15mVrms
±8
%
Signal Noise Ratio
S/N
Vin=200mV
80
dB
MUTE
Vin=200mV
80
dB
Muting Attenuation
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YD2149
YOUDA INTEGRATED CIRCUIT
TWES CIRCUIT
2SC1815
2.4k
10k
DET OUT
2.2k
2.2uF
3k
2.2uF
0.01uF
400
Vin
VT
IF OUT
10uF
100k
2SC1923
OSC OUT
0.022uF
10k
100k
0.022uF
75
75
5V
8V
2k
AM RF IN
MPX IN
+
+
3.3k
22
AM RF IN
21
FM OUT
20
AM OUT
+
220uF
1uF
470
470pF
T2
1000pF
23
RF Vcc
0.1uF
0.1uF
330pF
3.3k
560
1SV149
47k
T1
1SV101
47k
100pF
24
FM RF OUT
Vcc
+
L1
47k
2.7mH
1SV101
+
SW8
SW4
SW7
19
18
17
OSC OUT
ST LED
IF REQ
SW5
16
15
DET OUT MPX IN
14
13
LPF1
LPF2
YD2149
4
Vcc
AM IF IN
FM IF IN
5
6
7
GND
8
+
0.033uF
AGC
QUAD
R-OUT
L-OUT
9
10
11
12
+
SW2
CF1
T2
CR
CF2
0.01uF
3
0.01uF
AM LOW CUT MIX OUT
2
1uF
FM RF IN
0.47uF
1
4.7uF
RF GND
+
SW3
LPF
330
4.7k
SW1
FM RF IN
FM IF IN
270
75
50
BPF
Vin
Vin
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YD2149
YOUDA INTEGRATED CIRCUIT
PACKAGE DIMENSIONS
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