YOUDA INTEGRATED CIRCUIT
YD2111
3V AM/FM ONE CHIP TUNER IC--YD2111
DESCRIPTION
The YD2111 are AM/FM 1 chip tuner ICs, which are designed for portable radios and 3V headphone radios.
FEATURES
*For NEW FCC.
*AM Detector coil, FM IFT, IF coupling condenser are not needed.
*For adopting ceramic discriminator, it is not necessary to adjust the FM quad detector circuit.
*Built-in FM MPX VCO circuit.
*Built-in varactor diode for AFC.
*Built-in AM low cut circuit.
*Low
supply
current.Vcc3V, Tamb=25
Iccq (FM)=9.0mA (typ.)
Iccq (AM)=5.0mA (typ.)
*Operating Supply Voltage Range: Vcc=1.87V
Tamb=25
BLOCK DIAGRAM
12
11
10
9
8
7
6
5
1
2
3
4
24
23
22
21
20
19
18
16
17
15
14
13
FM
RF
FM
MIX
AM
MIX
FM
OSC
AM
FM
AM
OSC
IF
AGC
IF
AM
DET
FM
DET
AF
AF
FM
MUTE
LEVEL
DET
TUN
LED
ST
LED
VCO
DIVIDE
DECODE
ST/MO
FM/AM
WuXi YouDa Electronics Co., Ltd
Add: No.5 Xijin Road, National Hi-Tech Industrial Development Zone, Wuxi Jiangsu China
Tel: 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 5 2006-7-10
YOUDA INTEGRATED CIRCUIT
YD2111
ABSOLUTE MAXIMUM RATINGS
(Tamb=25)
PARAMETER SYMBOL VALUE UNIT
Supply Voltage
V
CC
8
V
LED Current
ILED 10 mA
LED Voltage
VLED 8 V
YD2111N 1200
Power
Dissipation
YD2111F
P
D
Note
400
mW
Operating Temperature
Topr
-25+75
Storage Temperature
Tstg
-55+150
ELECTRICAL CHARACTERISTICS
(Unless otherwise specified, Tamb=25, V
CC
=3V, F/E : f=98MHz, fm=1kHz
FM IF : f=10.7MHz, f=22.5kHz, fm=1kHz
AM
: f=1MHz, MOD=30%, fm=1kHz
MPX :
fm=1kHz)
PARAMETER SYMBOL
TEST
CONDITIONS
MIN
TYP
MAX UNIT
Icc(FM)
Vin=0, FM mode
9
12.5
Quiescent Circuit Current
Icc(AM)
Vin=0, AM mode
5
7.5
mA
Input Limiting Voltage
V
in
(lim)
-3dB
limiting
7
dB
V
F/E
Local OSC Voltage
V
OSC
f
OSC
=108.7 MHz
105
mV
Input Limiting Voltage
V
in
(lim)
IF
-3 dB limiting
35
40
45
dB
V
Recovered Output
Voltage
V
OD
Vin=80dBV
60 75 90 mV
Signal to Noise Ratio
S/N
Vin=80dBVF
65 dB
Total Harmonic
Distortion
THD
Vin=80dBV
0.2 %
AM Rejection Ration
AMR
Vin=80dBV
50 dB
LED on Sensitivity
V
L
I
L
=1mA
40 45 50
dB
V
FM
IF
Soft
Mute
Attenuation MUTE
Vin=0
20 dB
WuXi YouDa Electronics Co., Ltd 2 of 5 Website: www.e-youda.com