U2514B Datasheet, PDF (2/15 Pages) TEMIC Semiconductors – AM/FM Receiver for Digital Tuning with FM-Stereo Decoder

U2514B
Pin Description
AMIN ¹
FMAGC 2
FMRF 3
GNDRF 4
FMOSCE 5
FMOSCB 6
AMOSC ₇
OSCOUT 8
AMSADJ 9
IFOUT ₁₀
AFSM 11
FMIFIN 12
AMIFIN 13
VREF 14
28 FMIN
27 VS
26 AMFM
25 MPXOUT
24 MPXIN
23 CTRLB
22 _CTRLA
21 _LPF
20 _CERES
19 _OUTL
18 OUTR
17 _METER
16 GND
15 _FMDET
10547
Figure 2. Pinning
Pin Symbol
Function
1
AMIN AM antenna input
2 FMAGC FM-AGC time constant
3
FMRF FM RF tank
4 GNDRF Ground RF
5 FMOSCE FM oscillator emitter
6 FMOSCB FM oscillator basis
7 AMOSC AM oscillator
8 OSCOUT Buffered AM/FM oscillator
output
9 AMSADJ Current-input for AM stop signal
adjust
10 IFOUT AM/FM IF output
11 AFSM AF smoothing voltage
12 FMIFIN FM IF amplifier input
13 AMIFIN AM IF amplifier input
14 VREF Reference voltage
15 FMDET FM discriminator output
16
GND Ground
17 METER Fieldstrength voltage output
18 OUTR AF output right
19 OUTL AF output left
20 CERES Resonator 456 kHz
21
LPF Low pass filter for Pilot-PLL
22 CTRLA Control input for mute, search
mode and search sensitivity
23 CTRLB Control input for forced mono,
control output for stop function
and stereo information
24 MPXIN Stereo decoder MPX input
25 MPXOUT AM/FM MPX output
26 AMFM AM/FM switch and pilot
canceller time constant
27
VS Supply voltage
28 FMIN FM antenna input
Ordering and Package Information
Extended Type Number
U2514B-AFN
U2514B-AFNG3
Package
SSO28
SSO28
Remarks
Taping according to ICE-286-3
2 (15)
TELEFUNKEN Semiconductors
Preliminary Information
Rev. A2, 04-Nov-96