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SM5837AF
NIPPON PRECISION CIRCUITS INC.
Variable-length 1H Delay Line LSI
OVERVIEW
The SM5837AF is a variable-length delay line LSI. It has 12-bit input/output signal which can be set to undergo a delay in the range of 31 to 2078 delay bits. Maximum operating frequency is 40 MHz, making it ideal for use in video signal processing applications.
PINOUT
TOP VIEW
PARA (NC) RSTN DI0 DI1 DI2 DI3 DI4 DI5
36
DI6
35
44
43
42
41
40
39
38
37
DL0/SDI
34
DI7
33 32 31 30 29 28 27 26 25 24 23
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22
DI8 DI9 DI10 DI11 OE CLK VDD DO11 DO10 DO9 DO8
FEATURES
s s s s s
DL1/SICK DL2/LEN DL3 DL4 VSS1 DL5 DL6 DL7 DL8 DL9
SM5 8 3 7 A F
s s s s s
Variable-length 1H delay 12-bit input/output signal width 31 to 2078- bit delay length range 40 MHz maximum operating frequency Selectable delay setting method * 11-bit parallel input * 3-line serial input TTL-compatible input/outputs Tristate outputs 4.75 to 5.25 V operating voltage 44-pin QFP Molybenum-gate CMOS process
VSS2
APPLICATIONS
s
Video signal image processing
PACKAGE DIMENSIONS
Unit: mm
44-pin QFP
12.80 + 0.30 10.00
12.80 + 0.30 -
10.00
DL10
0.60 + 0.20 0.35 + 0.10 -
0.80
0.17 + 0.05 -
0 to 0.20 1.45
1.75MAX
NIPPON PRECISION CIRCUITS--1
(NC)
DO0
DO1
DO2
DO3
DO4
DO5
0 to 10
DO7
DO8
SM5837AF
BLOCK DIAGRAM
12 DI0 - 11 CLK
Variable-length 12-bit 1H Delay
12
Output Buffer
12 DO0 - 11
OE RSTN Delay Length Control
11 PARA Parallel/Serial Select 11 SDI SICK LEN DL0 - 10 SIPO 11 VDD VSS2 VSS1
PIN DESCRIPTION
Number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 Name DL0/SDI DL1/SICK DL2/LEN DL3 DL4 VSS1 DL5 DL6 DL7 DL8 DL9 DL10 DO0 DO1 DO2 DO3 VSS2 DO4 DO5 DO6 DO7 I/O (1) Ip Ip Ip Ip Ip - Ip Ip Ip Ip Ip Ip O O O O - O O O O Function Delay length set parallel data bit DL0 (LSB) when PARA is HIGH, and SDI serial data input when PARA is LOW. Delay length set parallel data bit DL1 (bit 1) when PARA is HIGH, and SICK shift clock when PARA is LOW. Delay length set parallel data bit DL2 (bit 2) when PARA is HIGH, and LEN latch clock when PARA is LOW. Delay length set data bit 3 Delay length set data bit 4 Ground (0 V) pin 1 Delay length set data bit 5 Delay length set data bit 6 Delay length set data bit 7 Delay length set data bit 8 Delay length set data bit 9 Delay length set data bit 10 Signal output data bit 0 Signal output data bit 1 Signal output data bit 2 Signal output data bit 3 Ground (0 V) pin 2 Signal output data bit 4 Signal output data bit 5 Signal output data bit 6 Signal output data bit 7
NIPPON PRECISION CIRCUITS--2
SM5837AF
Number 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 Name NC DO8 DO9 DO10 DO11 VDD CLK OE DI11 DI10 DI9 DI8 DI7 DI6 DI5 DI4 DI3 DI2 DI1 DI0 RSTN PARA NC I/O (1) - O O O O - I Ip Ip Ip Ip Ip Ip Ip Ip Ip Ip Ip Ip Ip Ip Ip - No connection Signal output data bit 8 Signal output data bit 9 Signal output data bit 10 Signal output data bit 11 Supply (5 V) pin Clock input Tristate output enable. Enable when HIGH, and disable when LOW. Signal input data bit 11 Signal input data bit 10 Signal input data bit 9 Signal input data bit 8 Signal input data bit 7 Signal input data bit 6 Signal input data bit 5 Signal input data bit 4 Signal input data bit 3 Signal input data bit 2 Signal input data bit 1 Signal input data bit 0 Reset pin. Normal operation when HIGH, and reset operation when LOW. Delay length setting method select. Parallel data (DL0 to DL10) when HIGH, and serial input (SDI, SICK, LEN) when LOW. No connection Function
1. Ip = input pin with built-in pull-up resistor, O = output.
SPECIFICATIONS
Absolute Maximum Ratings
VSS = VSS1 = VSS2 = 0 V
Parameter Supply voltage range Input voltage range Storage temperature range Power dissipation Soldering temperature Soldering time Symbol V DD VIN T stg PD T sld tsld Condition Rating -0.3 to 7.0 V SS - 0.3 to VDD + 0.3 -40 to 125 450 255 10 Unit V V C mW C s
Recommended Operating Conditions
VSS = 0 V
Parameter Supply voltage range Operating temperature Symbol V DD Topr Condition Rating 4.75 to 5.25 -20 to 70 Unit V C
NIPPON PRECISION CIRCUITS--3
SM5837AF
DC Characteristics
VDD = 4.75 to 5.25 V, VSS = 0 V, Ta = -20 to 70 C unless otherwise specified
Rating Parameter Symbol Condition min Current consumption Input voltage(1) (2) I DD V IH V IL Output voltage(3) Input current(2) Input leakage current(1) (2) Input leakage current(1) Output high-impedance leakage current(3) VOH VOL IIL ILH ILL IZH IZL IOH = -0.4 mA IOL = 1.6 mA V IN = 0 V V IN = VDD V IN = 0 V VOUT = VDD VOUT = 0 V V DD = 5.0 V, CLK frequency fC = 40 MHz, OE = 0 V - 2.4 - 4.0 - - - - - - typ - - - - - 10 - - - - max 85 - 0.5 - 0.4 20 1 1 5 5 mA V V V V A A A A A Unit
1. Pin CLK. 2. Pins DI0 to DI11, PARA, DL0/SDI, DL1/SICK, DL2/LEN, DL3 to DL10, OE and RSTN. 3. Pins DO0 to DO11.
AC Characteristics
VDD = 4.75 to 5.25 V, VSS = 0 V, Ta = -20 to 70 C unless otherwise specified
Rating Parameter CLK clock cycle CLK clock HIGH-level pulsewidth CLK clock LOW-level pulsewidth SICK clock cycle SICK clock HIGH-level pulsewidth SICK clock LOW-level pulsewidth CLK, SICK and LEN rise time CLK, SICK and LEN fall time DI0 to DI11, DL0 to DL10 and RSTN setup time DI0 to DI11, DL0 to DL10 and RSTN hold time SDI setup time SD1 hold time SICK rising edge LEN rising edge LEN rising edge SICK rising edge CLK DO0 to D011 output delay CLK DO0 to D011 output hold time OE HIGH-level pulsewidth OE LOW-level pulsewidth Symbol tCP1 tCH1 t CL1 tCP2 tCH2 t CL2 t CR tCF tS1 tH1 tS2 tH2 tCE tEC tPD tOH t OEH t OEL See "Load conditions 1". 5 50 50 - - - - - - ns ns ns 1.0 to 2.0 V 1.0 to 2.0 V Condition min 25 10 10 50 20 20 - - 10 0 25 25 25 25 - typ - - - - - - - - - - - - - - - max - - - - - - 10 10 - - - - - - 20 ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns Unit
NIPPON PRECISION CIRCUITS--4
SM5837AF
Rating Parameter OE DO0 to DO11 output enable delay OE DO0 to DO11 output disable delay Input capacitance Output capacitance Symbol tPZL tPZH tPLZ tPHZ C IN C OUT f = 1 MHz f = 1 MHz, OE = V IL See "Load conditions 2". - - - - - - - - 25 25 10 15 ns ns pF pF Condition min - - typ - - max 25 25 ns ns Unit
Load conditions 1
Load conditions 2
OUTPUT 40pF
OUTPUT 40pF
500 0V( t PHZ , t PZH ) 2.6V( t PLZ , t PZL )
t CR CLK
2.0V 1.0V
t CF 2.4V Min 1.5V 0.5V Max
t CH1 t CP1
t CL1
CLK t S1 DI0 - 11 t S1 DL0 - 10 t S1 RSTN t H1 t H1 t H1
1.5V
1.5V
1.5V
1.5V
CLK t PD DO0 - 11 t OH VALID VALID
1.5V
1.5V
NIPPON PRECISION CIRCUITS--5
SM5837AF
t OEH OE t PZH Hi-Z DO0 - 11 tPZL Hi-Z t PLZ t PHZ
t OEL 1.5V
0.5V
1.5V
1.5V
0.5V
t CL2 SICK t S2 SDI
t CP2
t CH2 1.5V t H2 1.5V t CE t EC 1.5V
LEN
FUNCTIONAL DESCRIPTION
The SM5837AF provides a built-in 1H delay for video signal processing. The delay can be set to a length of 31 to 2078 clock delay bits. The delay length (LH) can be set using 2 methods, selected by the state of PARA. When PARA is HIGH, the delay length is set by parallel input data on DL0 to DL10. When PARA is LOW, the delay length is set by serial input data using SDI, SICK and LEN. Accordingly, the function of DL0/SDI, DL1/SICK and DL2/LEN is determined by PARA.
Table 1. Delay bit length setting
DL10 0 0 0 0 0 0 DL9 0 0 0 0 0 0 DL8 0 0 0 0 0 1 DL7 0 0 0 0 0 1 DL6 0 0 0 0 0 1 DL5 0 0 0 0 0 1 DL4 0 0 0 0 0 0
Parallel Input Set Method (PARA, DL0 to DL10)
When PARA is HIGH, parallel input data is used to set the delay length. The delay length (LH) is determined by the input data on DL0 to DL10 as shown in equation 1 and table 1. L H = 31 +
k { DLk x 2 } k=0 10
(1)
DL3 0 0 0 0 0 0
DL2 0 0 0 0 1 0
DL1 0 0 1 1 0 0
DL0 0 1 0 1 0 1
Delay length 31 32 33 34 35 512
NIPPON PRECISION CIRCUITS--6
SM5837AF
Table 1. Delay bit length setting
DL10 0 0 0 1 1 1 1 DL9 0 1 1 1 1 1 1 DL8 1 1 1 1 1 1 1 DL7 1 1 1 1 1 1 1 DL6 1 1 1 1 1 1 1 DL5 1 1 1 1 1 1 1 DL4 0 0 0 0 0 1 1 DL3 0 0 0 0 0 1 1 DL2 0 0 0 0 0 1 1 DL1 1 0 1 0 1 1 1 DL0 0 1 0 1 0 0 1 Delay length 513 1024 1025 2048 2049 2077 2078
Serial Input Set Method (PARA, SDI, SICK, LEN)
When PARA goes LOW, 3-input serial data set method is used to set the delay length. Inputs DL3 to DL10 are ignored. SDI, SICK and LEN function as the serial data input, serial data shift clock and latch clock enable, respectively. The serial input data format, shown in figure XREF, comprises 11-bit serial data (S0 to S10) input on SDI in sync with SICK. The data on SDI is clocked into the serial-to-parallel converter shift register on the rising edge of SICK, and 11-bit parallel data is then latched into the delay length set register on the rising edge of LEN. The delay length (LH) is determined by the input data S0 to S10 (just as for parallel input data DL0 to DL10) as shown in equation 2. See also table 1. Note that SICK and CLK can be asynchronous. L H = 31 +
k { Sk x 2 } k=0 10
(2)
SDI SICK LEN
S10
S9
S8
S7
S6
S5
S4
S3
S2
S1
S0
Dotted lines indicate possible SICK and LEN states.
Figure 1. Serial input data format
Delay Clock Input (CLK)
All 1H delay registers operate in sync with the delay clock CLK. The maximum clock frequency is 40 MHz.
Output Data (DO0 to DO11,OE)
DO0 to DO11 are the 12-bit data outputs. They are tristate outputs, with the output state selected by OE. When OE is HIGH, the outputs are enabled. When OE is LOW, the outputs are disabled (high-impedance state).
Input Data (DI0 to DI11)
DI0 to DI11 are the 12-bit data inputs.
Reset (RSTN)
At power-ON, the internal timing generator circuits must be initialized by a LOW-level input on RSTN. After RSTN goes HIGH, the set delay length becomes active.
NIPPON PRECISION CIRCUITS--7
SM5837AF
TIMING DIAGRAMS
0 1 2 3 4
Parallel Set Data (Delay Length = 31)
5 31 32 33 34 35
CLK RSTN DI0 - 11 OE DO0 - 11
UNKNOWN D1 D2 D3 Hi-Z D5 D1 D2 D3 D4 D5 D31 D32 D33 D34 D35
PARA=H , DL0-10=L
Serial Set Data (Delay Length = 32)
DL0/SDI
0 1 2 3 4 5 6 7 8 9 10
DL1/SICK DL2/LEN RSTN
1 2 3 32 33 34
CLK DI0 - 11 DO0 - 11
INVALID UNKNOWN D1 D2 D3 D1 D2 D3
PARA=L , DL3-10=Don't Care , OE=H
NIPPON PRECISION CIRCUITS INC. reserves the right to make changes to the products described in this data sheet in order to improve the design or performance and to supply the best possible products. Nippon Precision Circuits Inc. assumes no responsibility for the use of any circuits shown in this data sheet, conveys no license under any patent or other rights, and makes no claim that the circuits are free from patent infringement. Applications for any devices shown in this data sheet are for illustration only and Nippon Precision Circuits Inc. makes no claim or warranty that such applications will be suitable for the use specified without further testing or modification. The products described in this data sheet are not intended to use for the apparatus which influence human lives due to the failure or malfunction of the products. Customers are requested to comply with applicable laws and regulations in effect now and hereinafter, including compliance with export controls on the distribution or dissemination of the products. Customers shall not export, directly or indirectly, any products without first obtaining required licenses and approvals from appropriate government agencies. NIPPON PRECISION CIRCUITS INC. 4-3, 2-chome Fukuzumi Koto-ku, Tokyo 135-8430, Japan Telephone: 03-3642-6661 Facsimile: 03-3642-6698 NC9408AE 1996.01
NIPPON PRECISION CIRCUITS INC.
NIPPON PRECISION CIRCUITS--8

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