參數(shù)資料
型號: TEA5777HL/N2,118
廠商: NXP SEMICONDUCTORS
元件分類: 接收器
英文描述: AM/FM, AUDIO SINGLE CHIP RECEIVER, PQFP32
封裝: 7 X 7 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT-358-1, LQFP-32
文件頁數(shù): 14/47頁
文件大?。?/td> 219K
代理商: TEA5777HL/N2,118
TEA5777_1
Koninklijke Philips Electronics N.V. 2006. All rights reserved.
Product data sheet
Rev. 01 — 11 April 2006
21 of 47
Philips Semiconductors
TEA5777
Low-power AM/FM stereo radio for handheld applications
Table 12.
FM write mode - data byte 3
Bits marked with * are common for FM and AM mode.
Bit
Symbol
Description
7 (MSB)
FREF1
IF and reference frequency control: see Table 13
6
FREF0
5
IFCE*
IF counter: 0 = not enabled; 1 = enabled
4
IFW*
IF window: 0 = 10 kHz; 1 = 20 kHz
3
HILO*
VCO injection mode: 0 = low-side; 1 = high-side
2
DBUS*
Dbus mode selection: 0 = off; 1 = on
1
-
no function
0 (LSB)
INTEXT*
reference frequency source select: 0 = external; 1 = internal
Table 13.
FM IF and reference frequency control
Bits FREF[1:0 fref(VCO)
fref(RF)
FM mode
VCO step
frequency (kHz)
reference frequency
referred to RF input (kHz)
00
100
50
fIF = 150 kHz
01
20
10
fIF = 150 kHz for East Europe
10
66.666
33.333
fIF = 133.333 kHz
11
100
50
fIF = 150 kHz
Table 14.
FM write mode - data byte 4
Bits marked with * are common for FM and AM mode.
Bit
Symbol
Description
7 (MSB)
P1*
I/O port control: see Table 28 and Table 29
6
P0*
5
PEN1*
4
PEN0*
3
-
no function
2
CHP0*
charge pump current: 0 = large; 1 = small
1
DEEM*
de-emphasis: 0 = 50
s; 1 = 75 s
0 (LSB)
-
no function
Table 15.
FM write mode - data byte 5
Bits marked with * are common for FM and AM mode.
Bit
Symbol
Description
7 (MSB)
FOMO
stereo reception: 0 = allow; 1 = force mono
6
SDSOFF
stereo decoder blend function: 0 = on; 1 = off
5
DOFF
stereo decoder: 0 = on; 1 = standby
4-
3-
2-
1-
0 (LSB)
-
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