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PDF ( 数据手册 , 数据表 ) LS1691BM

零件编号 LS1691BM
描述 FM/AM RADIO CIRCUIT
制造商 LIGHTNING Semiconductor
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LS1691BM 数据手册, 描述, 功能
LIGHTNING
Semiconductor
Devices
LS1691BM
FM/AM RADIO CIRCUIT
DESCRIPTION
The LS1691BM is a one-chip FM/AM radio IC
designed for radio -cassette tape recorders and
headphone tape recorders.
Outline Drawing
FEATURE
l Small number of peripheral components
l Low current consumption (Vcc=3V)
FM: ID=5.3mA (Typ.)
AM: ID=3.4mA(Typ.)
l Built-in FM/AM select switch
l Large output of AF amplifier
LS1691BM
FUNCTIONS
FM section
l RF amplifier; Mixer and OSC
(in corporating AFC variable capacitor);
l IF amplifier,
l Quadrature detection;
l Tuning LED driver.
AM section
l RF amplifier, Mixer and OSC (with RF AGC);
l IF amplifier (with IF AGC)
l Detector
l Tuning LED driver
AF section
l Electronic volume control
l FM muting
This Data Sheet is subject to change without notice
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LS1691BM pdf, 数据表
LIGHTNING
Semiconductor
Devices
LS1691BM
Coil Data
AM OSC
Core diameter φ0.06mm 2UEW
f (kHz) L(µ H)
1 to 3
Qo
1 to 3
Number of widings(t)
1 to 3
4 to 6
796 270
125
107
796
Equivalent to L- 5K7- H5 R12- 1684X. Mitsumi Electric
Co.,Ltd. or 7TRS-8441X TOKO Co., Ltd.
AM IFT
Core diameter φ0.07mm UEW
FM RF
Co(pF)
1 to 3
180
Qo
1 to 3
90
Number of widings (t)
1 to2
2 to 3
4 to 6
111 35
7
Equivalent to 21K7-H5 R12-8558A. Mitsumi Electric
Co.,Ltd. or 7MC-7789N TOKO Co., Ltd.
FM OSC
AM bar antenna
f (kHz)
796
L(µ H)
650
Primary Secondary
91t 20t
BPF PFWE8
(88 to 108MHz) Soshin Electric Co., Ltd.
CF1
S F U- 4 5 5 B
Murata Mfg. Co., Ltd. Or BFCFL-455 TOKO Co., Ltd.
CF2
SFE10.7MA5
Murata Mfg. Co., Ltd.
CF3 CDA10.7MC1 Murata Mfg. Co., Ltd.
This Data Sheet is subject to change without notice
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